A while back, I came across a reddit about one of Gale's bugged flags. It's about bite night, where he should be more sympathetic towards Astarion if you had previously been sympathetic towards his arcane hunger, this in turn would then make Astarion take Gale's side during the bomb reveal. (The flags and checks currently loop into themselves so this can currently never naturally occur. I hope it gets fixed.) Sure, this too depends on Tav's behaviour, but it also adds an element of chance (which scene plays first) and gives the overall impression of the characters being influenced more by each other than by the player. Overall, I think they did an excellent job to make Gale, Shadowheart and Lae'zel's behaviour seem organic, while in the case of Astarion, Karlach and Wyll the video-gamey player influence is pretty much in the open.

Coming back to Wyll, another point which bugs me about him is his Stelmane dialogue. If you only talk to him about her after the Emperor has revealed what he did to her, Wyll is furious about it because it confirms his suspicions about her "stroke" feeling off. If, otoh, you have talked with Wyll about Stelmane before the scene with the Emperor, he is denied his outburst completely. I feel he should be able to talk to him about what the Emperor revealed no matter the order the previous conversations took place in.