I've been on Raging Spirits at DisneySea. It's definitely not a major attraction. I would classify it as a short D Ticket ride.
It's a small, very short, rather tame "thrill ride". It is the most fun at night because of the smoke and lighting effects. But it's also one of those basic little roller coasters that only takes about 75 seconds to ride. It's up a lift, around some corners, through a loop, a couple more tight turns with short drops, and then back into a brake run before rolling into the station. It's very short!
The most entertaining part of Raging Spirits is when you exit your train and a half dozen Japanese hostesses in bizarre Mayan outfits all wave to you and yell "ADIOS AMIGOS!" in Japanese accents. I laughed so hard I could barely walk down the exit ramp. Somehow I don't think that part will be included in the Florida version.
Raging Spirits is certainly nothing like the major E Ticket thrill rides like Big Thunder Mountain, Space Mountain, Matterhorn Mountain, Everest, Splash Mountain, etc. I'm surprised they would even consider wasting the money and space on it for the Magic Kingdom.