Stats on level-up which just provide a flat boost to your damage suck. Why do you take strength when you level up? Why do you take willpower when you level up? Is it because you want the armor or the focus? Or is it because those stats just so happen to be tied directly to the damage you can do, and as such you pretty much need to invest in them (depending on your build) in order for you to stay effective as you level up. The primary reason why these are chosen is because it's a direct damage investment, to the point where not picking either of them is effectively just you cutting your arms off. I don't think they should be removed necessarily, but I also think that their nature inherently makes the choice of what to take less interesting.
Do I choose between being more likely to dodge, being more likely to randomly strike harder, or this consistent and necessary damage bonus? Heck, even if you're a pure support, you still pretty much just need to invest in willpower, because several support abilities scale based on your spellpower. At least you get to chose 3 of the 6 stats to give a boost to on level-up, but given that there's always going to be one of those going to the stat that you happen to use for dealing damage, you might as well just chose 2 of the four remaining stats for your entire build variety.
And if you're going for a split build, where you use both physical and magical powers, then that's a necessity to invest in both willpower and strength. This means even less ability to go for other stats for reasons aside from just punching harder. You could have non-damage reasons for going for one of the two, but their main shtick is that they are the go-to stat for actually becoming more powerful.