From my own perspective, the reason I'm giving this one scorn is because, for me, Cars 2 was too much of a mixed bag to consider it good and Brave was a overly-predictable and generic film for Pixar's standards that, while isn't a stinker, comes very close to being so. I'm sorry but Monsters University isn't impressing me too much yet. This just sounds like a step in the wrong direction especially 12 years after the fact.
Brave was ruined by Executive Meddling. There's a real sordid past about that film, Pixar just about forcing the film's director off the project. Any lost potential seems to have been forcibly cut out. The film could have been a lot better, but I give it credit for what the film was
trying to do. Something tells me just having the Pixar name attached to it made people hate the film because it wasn't exactly the same film they usually make (cute thing learns a lesson). Seems that if it was a 2-D film produced by an indie studio, even with the same story telling flaws, everyone would be acting like it was the greatest thing ever.
Cars 2 was all about the merchandising, and the fact that, after Toy Story 3, Disney was going to make a cheap, inferior sequel to that when Pixar left. In fact,
all the films they've planned sequels to so far were going to be made in-house by Disney until they bought Pixar. Monsters Inc, under their hand, was to be a direct sequel in which they visit teenage Boo, and get trapped in human world, basically setting up the
exact same jokes from the first one in reverse. Someone at Pixar had the right idea by not doing a direct sequel, as that would have ruined the ending of the original film. Something to think about when Star Wars episode 7 is in production.