I'm preety sure that most of the people complaining are "playstation-teenagers" who played only in the recent Divinity instalment on their mommy's consoles...
Like it or not kids, but isometric Divine Divinity is the best game Larian ever created [also highest rated by gaming critics], and if Larian decided to stick with that formula I can only applaud them.
But judging from the screenshots, I think that graphics should be a bit more darker & grimmier.