I agree. The only thing MSEP needed was to replace floats every so often with the latest movie theme and characters. Maybe have one "seasonal" float that gets modified to the latest rave.
That's what would get people to watch it at least once a year. (I'm not much for parades, but I like the way MSEP drew people out of rides and queues, so I wouldn't have to wait as long. (This was before I had children, of course.)
Jungle Cruise during MSEP was always a hoot, since you could hear the music from it.