Tollus doesn't have that leeway because like I said, he is a major antagonist, one with a personal connection to two of our party members. And yet his reasons for founding (?) the cult and working to undermine the baroness... is because he thinks living through the Godswar makes him entitled to a title and riches? (I think that's what he wants. I can't go look it up again at the moment.) This is so laughable that even the characters seem kinda bitter about how lame his motives are.
I think it's fixable though. The writers just need to give him more of a personality than "Mwahahahaha I'm so evil!" next time we see him, offer some insight on how he recruits people into the cult, maybe let us see what sorts of things he's up to besides being Kasyrra's willing servant. The cult itself is the same.
As for Alissa: I want Arona to go through with her threat to punt her head into the sun. A lava lake would do in a pinch.
As for Tollus: It was stated that he's the descendant of the noble who used to rule the land the baroness Carmen now owns. His ancestor was a coward who ran away when the war started and was subsequently stripped of his title, which went to Carmen and her... biological issues mean that she holds it to this day.
Tollus feels entitled to the land because he is the progeny of its former ruler and he's convinced himself that his ancestor was tricked somehow, making him the legal air by right. He's also not really Kasyrra's willing servant. He was fine so long as she was just a nebulous evil force giving him power but he hates actually having to share the spotlight with her. Now that she's actually in Savarra the majority of the cult listens to her instead of him and he loathes it. That's why he's planning to overthrow her and imprison her in a magical crystal. He's a piece of work alright.