Yeah, but I think we're diverging from the real issue of what people are saying here. I think beneath all the rhetoric are two main points. It's not so much that people have a problem with Pixar per-say, but rather:
1) Tomorrowland/Discoveryland has lost its identity. It's the lack of a thematic direction I think that has people concerned. I don't think it matters whether what's there are Pixar or Disney content, but just that the thematic choices are no longer consistent with the original vision of Tommorowland. Paris, of course, had the take of the "tomorrow that never was" from a science-fact point of view. MK had the same take but from a science-fiction point of view. But both were still true to the concept of Tomorrowland. I think most people railing on Pixar-ification of Tomorrowland are more complaining about the fundamental shift in approach and lack of thematic consistency throughout the land. Potentially more troubling to some is that it has the *potential* (although I in no way believe we're at this point) to signal that Disney is just interested in filling the lands with whatever will work and even out crowd flow, theming to be used as a guideline only. Again, I don't think it matters here that it just happens to be Pixar vs Disney content.
2) I think part of this also boils down to a little animosity that corporate Disney has (temporarily) written off 2D. That we all know that 2D is still a perfectly viable medium but Disney has just suffocated WDFA's ability to tell a compelling story. Does anyone really believe that if Lion King were released in theatres today that it would flop b/c it's not 3D? I hardly think so. We can say 2D is dead all we want, but we killed 2D ourselves, we have no one else to blame. So I think some of the Pixar backlash is stemming from this rather emotional and subjective frame of reference.
I think this will subside as the integration becomes cleaner. We should all be happy that Lassiter has publicly stated his excitement about reinvigorating traditional hand-drawn animation. And I'm also excited that he's interested in producing more shorts. Like Walt Disney, he understands that shorts are excellent proving ground to develop talent. It doesn't have to be profitable in and of itself, but what it does for the art form is immeasureable.