Many people are mad at disney for allowing pixar to so called "Take Over". Me I'd take pixar taking over any day, which I dont believe it is, rather than having something like Marvel characters or Universal "Take Over". At least Pixar is and always has been in disney style unlike Most if not all of Marvel or Universal.
I accept all that is being put in the parks, Pixar is a major part of Disney now with John so high up in Disney.
In some things yes I have not liked the pixar stuff like the block party, bugs land (to much for kids and just in the way) and I'm not a big fan of Toy Story the Musical (Ive only seen pix but I think It looks stupid) but for the most part the things like Buzz, Monsters (ok could be better), Nemo, Toy Story Mania, the future cars land, and (personally my favorite parade ever) the Pixar Play Parade are all great and add to the fun and magic.
Of course this is my personal opinion. What about you?