The motivations of the antagonists are pretty poorly explained. Specifically, the game never really delves into why Venat would betray the other Occurians or why there was any need to relinquish Occurian control to begin with. I mean, they where obviously pretty manipulative but we’re given no evidence within the game that their rule was particularly detrimental, nor that humes could do a better job. If we were given a genuine reason as to why it was necessary, I might have been able to consider the whole “Wrestling Ivalice back into the hands of man” jazz more than convenient idealistic nonsense.