I just think Disney fans have a VERY exaggerated perception of what a "thrill" ride is. I think Universal actually only has a couple of real "thrill rides" (Hulk, Hollywood Rip Ride Rocket, Dr. Doom's, and Dragon Challenge). I have a hard time calling Spider-man, Transformers, and Harry Potter and the Forbidden Journey "thrill rides". Do Disney fans REALLY consider Star Tours a "thrill ride". I would even put Revenge of the Mummy on par with Big Thunder Mountain in terms of "thrill" level. Which would be moderate.
Just because something moves a titch faster than "It's A Small World" doesn't make it a carnival flinger. I have actually heard Disney fans complain about how intense "Cat in the Hat" is. No wonder Disney actually had a press event for new benches.
That said, Universal is adding Gringott's Vault, which will be a "family friendly" coaster based dark ride. The Hogwarts Express which will have no height restriction (not even seat belts), some "family friendly" rides to Jurassic Park, and a state of the art Lorax dark ride where we will ride on scooters. That one sounds really cute to me, but infants won't be able to ride so Disney fans will naturally HATE it.