You must have decided to ignore my comment for Festival of the Lion King. I guarantee if that show were to go away, there would be a huge fan-based complaint problem going on at WDW. It's probably MORE popular than Aladdin. Which is why it was re-located instead of just closed with the rest of the land.
The same could be said for attractions like The Great Movie Ride, Spaceship Earth, Mount Everest, ect. Disneyland may have more attractions with fan support, but that doesn't mean that WDW doesn't have a few that have the exact same, if not, more.. Fan support..
.....And those huge fan bases are not going to try to keep Beauty and the Beast open if there is something new coming in. Aladdin at Disneyland has a fan base that actually wants to keep the show from being replaced. Much like how Lion King and the others I mentioned would be really hard to get rid of because of their huge popularity.