I always reference back to the optimism there was at Epcot when it was being built and getting ready to open. Everyone was so excited, like there was electricity in the air. When they had the town hall and showed everyone a rough fly-through of the courtyard and a quick stick figure thing of the ride system, everyone was thrilled. When the music first came on the courtyard everyone stopped by to hear it. When they let folks in to play-test Mission: SPACE Race - so many ooh's and aah's over the building, the courtyard, the spinning globe. People stopping and reading all those glass plaques.
Shortly after the official opening it became a sort of soylent green "something is very VERY wrong" sort of dread and dismay. Most of the cast hadn't experienced the ride because of how the opening and previews occurred. What they did see was the guest reaction and often adverse reactions. It wasn't pretty.
So... if there's something they can do to get it back to where it was before it opened.. capture that sense of awe and wonder and "gee, aint this neat" then I think the attraction could be a success. But if it's just lipstick on a pig, tear it down and start over.