I understand some of the underlying point you are getting at, but you used a poor example. Universal Studios is the model citizen for Epcot's future. It has absolutely been the worst for having complete disregard for its original vision (studio-behind the movies vs. ride our movies) and original attractions with rapid turnover. Nearly everything has been kicked out at this point (aside from ET) and replaced with new "in" IP. Some of which people certainly feel are rotten (Transformers and Fast and Furious for starters).
THE DIFFERENCE is that they didn't let their park rot as badly in between and unapologetically just went ahead and changed it. The execution also is the big difference. Regardless of my thoughts on the exterior of things like Transformers and the underlying IP, it does make for a fun attraction. I too like Universal Studios, if that isn't clear.
Epcot's problem is we've been beating the same dead horse for two decades and fans have some weird lingering hope EPCOT will rise from the ashes. Epcot foregoing its original vision is obviously disappointing, but trying to cling has put the park into today's situation. I'd rather Epcot turn into the unapologetic turnover that has become USO's approach and be a good park, rather than the mess it is.
I don't understand Disney fans who not only want to keep something a museum, they want to keep it a graveyard. I have no problem with mourning what we've lost, but can we please try to move forward? Its been dead for so long.