It's true that following Walt's death, there was a "What would Walt do?" mentality that pervaded the company and impeded the very type of innovation that Walt championed.
HOWEVER, the idea that all critiques of all changes ever for any reason are automatically invalid because Walt or Steve Jobs or the family from Meet the Robinsons or whoever was "pro-change" is preposterous.
Yes, Walt loved innovation, and hated repeating himself. He also took inspiration from fairy tales that were hundreds of years old, and re-relased his major movies every seven years so that each new generation could experience them. He didn't say, "Well, they'll hate this old movie, lets change it all because that will automatically make it better."
Regarding the equally preposterous idea that all Disney critics are "anti-change" - I've yet to see comments that Sunshine Plaza was better than Buena Vista Street. (I'm sure somebody here liked Sunshine Plaza better, but I haven't seen huge complaints that it's gone). And there's a thread out right now that says "Sad News...Innoventions" that's sad because Innoventions may NOT be changing yet, and people want it to!