All major fights have required... respeccing with the right talents
And that is supposed to be a good thing?
If a game allows, let alone requires "respeccing", it's garbage.
I'd normally agree with you but it somehow fits the puzzle nature of the game, and actually ain't boring nor tedious.
I also have to say that during mid-game the respeccing calms down. There are character builds and combinations that are good enough so that you only slightly have to tweak their setup. When late-game difficulty kicks in I expect character management and respeccing will amplify again, if there are any murder bosses.