Oh my, but Universal Studios would be so much better off with more of their original attractions than their recent replacements which bombed. I'm thinking of the fast & furious ride and the Jimmy Fallon one. They're both terrible. And I think they are both going to feel dated very quickly (if they don't already) whereas attractions based on older iconic movies would always age better. I'm hoping Universal can see the error of their ways and replace those new attractions before they mess with any of the older stuff.
I think it would be a big mistake for Disney to get rid of too many attractions based on the timeless classics for "popular IP of the moment" stuff the way Universal has done. Nostalgia will always sell, but "new and shiny" IPs wear off. I think Universal is setting themselves up to get bitten by this. Of course, it does help to actually build high quality fun attractions that are fun even if you don't care about the IP.
Seeing what they replaced at Universal in those two cases it was really neutral. No one was clamoring for Earthquake or Twister.