Largely the argument against things like this is artistic intent. Sure, you may want a setting without being tied to certain gameplay elements, but do the people who make the games want to make the game with the specific design you want? If no, then it would not be an ideal for them to be made to make games to cater to you. Games can have niche audiences, games can have wide audiences. Often it's praised for a game to have a more niche demographic, because though they don't make themselves open to a majority, those people in those niches are often underserved. Coming in and asking that those IPs be changed to fit your own taste, if your own taste is already served by many games that are good in their own right, is not, in my opinion, good. Especially when you claim that games which don't are "a failure in the game design" and "it doesn't belong on the market".
As you know because you've talked about it, you can learn powers from other classes despite not being that class. Also, 1: it's not GP, it's electrum. 2: 500 electrum is stupidly easy to get, I have a character that hasn't even gotten to level 2 and they went from 6 electrum to 416, without me trying to farm, while only fighting the low level enemies in the Old Forest.
So, you know how Nelia's shop is directly to the right of the entrance to Harvest Valley? She sells the Dueling Hat (3 sexiness), Elegant Dress (20 sexiness), and several undergarments (both the upper and lower slot, which boost either sexiness or temptation by 3). If you complete the Shades of the Past quest by beating Gunvaldsen via the parley gives the Cloak of Winter (3 sexiness). The Cultist Charm provides 10 sexiness, and both of the neckwear that Viviane sells gives 3 sexiness and 4 temptation. If you find the Witch's Set in the Old Forest and are willing to put it on and get tf'd, the chest piece is 15 sexiness, while the boots are 5 sexiness and the gloves are 3 (but you can equip the boots and gloves without getting tf'd. As long as you don't put on the chest piece.). There are many more pieces of equipment in this game which boost sexiness.
You literally say that you have a thief character. Thieves start with an at-will that instantly removes half of your threat and gives a status effect that makes your next attack/ability not generate threat, in addition to having an encounter power that also removes half your threat and applies the status effect (but for two turns), along with blinding enemies. Also the level 2 Warrior power "Dominance" directly says it generates high threat in its description.
And even aside from that, threat management doesn't purely exist in the form of powers directly impacting threat. Any source of healing and damage generates threat, both for health and resolve. Against large groups aoe attacks generate very high threat considering that the threat scales based on the damage/healing, which is also why Atugia deals split damage with all of her attacks and abilities. Being mindful of how your damage impacts your threat is useful. This, by the way, is stated in the Combat Basics section in the journal.
You should already know this having played the game, but you increase 3 stats per level by 3, and every other stat increases by 1. And I'm 99% certain that I made a post a while ago where I explained, directed at you specifically, what every one of these stats do. Presence isn't required for a warrior but it's very much useful if you're a tanky warrior archetype considering the buff it gives to your allies.
To quote the combat basics section, "Damage Reduction functions as a percentage. If you have 20 armor, then all physical damage you take is reduced by 20%. All damage reductions are capped at 75%."
That "low-level armor" that Ogrish sells has immediately reaches the highest level of physical damage reduction you can have in the game (before your enemy's armor piercing stats). And besides, the devs have directly said that this isn't a game like TiTS where you're constantly swapping equipment in and out because new equipment has better stats. Some equipment is better than others overall, but they're generally intended as sidegrades to each other. The Beast Killer is, as per its name, intended for killing Beast type enemies, as Beast types are weak to blight damage. If you literally just dual-wield the basic daggers you can and will have a higher damage output whenever both attacks hit.
In my view, weapon stats are not that hard to understand. Damage is obvious, accuracy increases your chance to hit, dodge increases your chance to not be hit, crit increases your chance to land a crit, armor penetration lowers the enemy's armor by that much when making an attack, spellpower boosts the power of your spells, and spell penetration is like armor penetration but for the anti-magic damage reduction. Those are the overwhelming majority of what you'll see in terms of stats, and the only ones which I could suspect to have any difficulty in understanding is the penetration effects, but you could have just looked through the Attributes and Stats section of the Journal to have it explained.
Basic spears vs the blade staff: Same damage count, blade staff boosts spell abilities which is only useful for casters and semi-casters, and where the spear has evasion and a higher accuracy, the staff bypasses some damage reduction and has a higher chance to crit(except not really, because accuracy also increases the chance to crit by proxy, so the 5 less accuracy compared to 5 more crit is a bad tradeoff as that's the same chance to crit but a lower chance to actually hit). Here's the thing though: The blade staff is 2-handed. The spear is 1-handed. While it isn't a light weapon so you can't dual-wield it, you can equip offhand equipment, like every single type of shield present in the game and many off-hand catalysts. As for a halberd... there is no halberd. So I'll assume you mean either the poleaxe or the pike. First, the pike: 15 more damage, equal accuracy, rather than a crit bonus and armor penetration it's 10 evasion. Largely the armor penetration will not outdo the plain extra damage provided by the base stats(especially due to how damage dealt works), and evasion is always useful. Second, the poleaxe: 15 more damage, 10 more penetration, same crit bonus, higher evasion, worse accuracy. The poleaxe is much stronger than the blade staff for a melee fighter, even if the accuracy is lower. It's a tradeoff of hit chance for power on hit, and is much more useful for a fighter than the blade staff. You should only use the blade staff if your character uses magic (which admittedly 3 of the 5 classes do), as the blade staff is a direct upgrade to the Quarterstaff.
Strength-based Warriors are certainly viable, my main character is a strength-based warrior (2-handed weapons) and she was able to get through the entire Winter City and Palace of Ice pretty fine. She's since become a slight hybrid, but that's only because of the White Mage's level 4 at-will being a nice damage buff. She'd still be completely viable without it.
), I'm not unfamiliar with the concepts. It would take some REALLY shitty writing to make me complain about any world building issues in the game, and honestly I doubt I'll ever see that in COC2. 
