When I lived in Orlando, many WDW cast members joked that the asteroid projection at the MK's Space Mountain looked like a giant chocolate chip cookie.
Back to the subject at hand, this Space Fantasy ride looks like a real nice family attraction. It would certainly fill a niche at one of their Orlando parks, and I would love to see Universal make the move to add it. However, my guess is most USO fanboys would probably consider it too-Disney-like and would not be pleased.
Incidentally, Worlds of Fun, my local Cedar Fair stationary carnival, has one of those spinning coasters similar to the Mack model described (the one at WoF is made by Gerstlauer, tho). At any rate, I always felt it was a great candidate for a dark ride. Sure, it is not the most thrilling coaster in the world (and it does make a lot of people sick), but it certainly would be enhanced with a good narrative, some special effects, and good old fashioned darkness. Looks like Universal Creative had the same idea! =)