Sorry, but I don't agree with this. At all. Disney hasn't been able to come up with a ride concept as advanced at Spider-Man, let alone Potter. Their last true "game changer" was Indiana Jones. In the mid 90's.
It's simply pathetic that their idea of innovation is a 4K 3D version of Star Tours and Soarin'.
When the Yeti worked, Expedition Everest (opened in 2006) was a pretty awesome experience, in keeping with the best traditions of Disney.
Soarin' (opened in 2001 in CA) was an innovative ride system and something with strong cross-generational appeal. It's really in the spirit of what Walt Disney wanted to achieve, something to be enjoyed by kids, parents, and grandparents.
Mission: Space (opened in 2003) was an innovative attraction.
Under Eisner, WDI showed that it was capable of some really good theme park experiences. Whether you liked him or not, Eisner insisted that new attractions be rolled out at the theme parks on a regular basis.
The problem is that, under Iger, the flow of creativity has been stemmed by a culture more focused on cost. Even something as popular as Toy Story Mania (opened in 2008) was approved largely because it was inexpensive for an attraction (roughly $80M).
Management in Orlando hates spending money on attractions because they don't see the revenue growth to justify those expenditures. They are more worried about their bonuses than making WDW a better place and there's no one in Burbank forcing them to innovate.
After some lean years, Universal is once again marching forward with rides.
WDW is still sitting on the sidelines, playing around with plastic wristbands.