While it's inevitable that some things would be cloned every now and then,
as I've said in another thread, I would argue that every castle park needs at least one or two exclusive major draws to call their own. The Magic Kingdom, in its current state, is lacking on that front, especially when its closest comparison - a park that started out cloning a lot of its DNA - now has four, soon to be five, unique major attractions (
or takes on attractions) to itself.
The average vacationer wouldn't care one way or another, the more fanatical parkgoer would have another incentive to take the pilgrimage. Everyone wins!
It's especially evident when most of the international resorts have gotten or will get more thematically fitting mini-lands devoted to
Frozen and they had a perfectly fine alternate concept to use without tainting EPCOT's soul. For the film that dethroned
The Lion King as the highest grossing animated feature film, they should've shot for the moon and given New Fantasyland the major attraction it sorely yearned for