There actually is a truly terrifying moment in Dinosaur, and it's when the immense Carnotaurous leans over the right side of jeep and bellows VERY loudly. I've seen people cry at that moment.
Having been to all the Disney parks around the world (except DisneySea), it doesn't bother me to have clones of rides, as long as each park has SOME unique attractions. I don't think a lot of people go to more than one Disney park on a regular basis, so the clones don't bother them.
For the Disney fanatics, getting to go on your favorite rides yet again t'aint a bad thing.
Of course, each park MUST have some unique attractions. Going to Tokyo
Disneyland was definitely enhanced by "Meet the World," "Cinderella's Mystery Tour," their version of the "Tiki Room" (now entirely different than any other) and "Mickey Mouse Review."
Trips to Disneyland Paris are enchanced by their unique version of "Space Mountain," "Mysteries of the Nautlaus," "Timekeeper" (the original French version of this was always superior, and it is now the only remaining version), "Indiana Jones Temple of Peril," and the fantastic Queen of Hearts maze.
However, we all want to see clones of our favorite rides in these parks as well!