also (i'll drop this now lol but) i was chatting with someone in my raid group who does love the story and they were saying they were also disappointed that the latest villain just kind of showed up and said "yeah i'm evil i want to destroy the world hehehe" and so far has not had any other motives revealed.
so ITS NOT JUST ME! just saying!
(yes i'm aware the other ascians in ShB had better motives than that)