I think the big difference between bungy jumping and riding a gondola at WDW is that it. is. at. WDW!! When you go to WDW you get on all the attractions with a certain measure of trust that the ride is safe for all. There is an assumption that it is Disney safe, and all will be well; afterall it is a magical vacation destination, not a jump off the bridge tied to a rope.
I think there needs to be a lot of warnings on the gondola loading site, if there are not already.
I have a fear of heights, and made the choice that even though it's disney transportation, it was probably not for me. I still had the urge to try it after the kinks were worked out, however.
I feel the other poster had it right in that disney gondolas load people who are slower, whether from disability, managing strollers or children, or
ECV's. It is a theme park for all people, not being used at a ski park.
Don't know what the answer is, but it seems to still be a problem.