People who haven't experienced the original JII are probably wondering how in the heck the removal of a single character -- DREAMFINDER -- could have made such a big difference. Well, I believe it has little to do with just that one character, and more to do with the way the old ride seemed to fit in so organically with Future World. In the minds of many, the original JII, along with HORIZONS, WORLD OF MOTION, and the still-existing SEE are so irreversibly connected to the core ideas of Epcot. Imagine getting rid of HAUNTED MANSION, PIRATES, it's a small world, and SPACE MOUNTAIN at MK, and you get the idea of how rough the loss of Epcot's core attractions was.
I wish none of these attractions would have had to have been gutted to make way for TEST TRACK and MISSION:SPACE. In a perfect world, we have all of them alongside each other. Alas, space is always an issue, as are the wishes of the corporate sponsors. I don't think that the traditional Dark Ride drought at Future World will last forever. It's only a matter of time before a really great Future World ride idea gets greenlit.