I mean… maybe I’m misunderstanding you, but you seem to be ignoring the fact that Universal offers an experience directly comparable to or superior to that offered by WDW. It isn’t “second best.” If WDW lowered room and ticket prices back to 2005 levels, I wouldn’t suddenly switch back to WDW. That resort has enough other deficiencies that Uni remains very attractive. And I don’t see why another park of Disney/Uni quality, Epic Universe, wouldn’t pull from Disney. Prices aside, is it better to go to the shambles that is EPCOT or visit an all new park? Especially one with attractive IPs? Yes, some guests will remain loyal to their Mickey Mouse soap bars, but nowhere near all.
You seem to be offering a variation of the disastrous Blue Ocean strategy.