I am under the impression that TDA has no say on what goes on regarding major attractions. Corporate wants what corporate wants.
Speaking as a So Cal native and life-long Disneyland'er, I've kinda given up on the DLR crowd. The quality of posts on Micechat has degenerated to the point where I don't even really bother. Many of the better, more intelligent posters disappeared around the same time Al Lutz left, and it's hard to have a conversation with the people now, many of whom idiotically keep asking for sources (they seem to not understand how MiceAge used to or needs to work and, plus, what exactly would be an acceptable source for them? The Associated Press? A name of an employee they've never heard of?).
As it goes with the audience...and so it goes with the park. I've kinda given up on it. Not in the sense that I can never have fun there, but that I've got to come to grips that the qualities that I admired about it are passe and have receded from memory. Nobody remembers anymore that attractions were once supposed to have content, to be actual self-contained works. Everybody's been conditioned now to think nothing of attractions simply being endless references, a self-perpetuating circle of selling Disney's various divisions (the movie tells you to ride the ride, the ride tells you to buy the figurines, the figurines tell you to watch the movie---it's Disney all circle-jerking themselves for money).
Nothing was more heartbreaking than the ride concepts I heard for Star Wars Land. An universe of endless possibilities, and the rides they came up with were a shooter about escaping the Death Star, and a simulator about riding the Falcon. Basically, taking exact scenes from the movie and porting them as literally as possible into a ride experience. They were too lazy to even consider coming up with a stand-alone ride, something that could still be a part of the Star Wars universe but be its own little self-contained story.