As long as the show remains a train wreck in slow-mo (accidents, actors quitting, canceled performances . . . ) the show will remain an oddity worth seeing. But once the novelty of 'an actor might plummet to his death in front of you' wears off, this show is done. I don't think anyone in the industry expects this show to pay off in the long run.
And nothing could make Disney happier. They'd no doubt like to take their own shot at Spiderman since they now own the property (though they don't own this show).
The best thing that could happen for Disney is for this show to fail. Then Disney can swoop in and do their own theatrical version of Spiderman which doesn't ummmmm . . . . suck!