Wow!! This seems like a unworkable solution for a high volume system with as many EVC's as Disney deals with each day. I have been a fan of the Gondola from the beginning . It seems the method of ECV loading at Riviera has the potential to cause problems and halt's forever.
I think they might have underestimated the amount of ECV users in general, but that said the only other option would have been to have it as another terminal station where everyone gets off and back on. They probably calculated that stopping it for those who need it is still more efficient then unloading everyone and having them get back on.