The shows have lots and lots of moving parts and potential points of failure. Puppets, performers, costume changes, moving set pieces, rigging and lifts, screen tech integration, even the curtain can fault.
It's a new park and kinks are still being worked out. Show ops is nowhere near where internal projections were. There were some incredibly bold projections for how many shows Ministry could pull off in a day, utilizing the preshow and show space simultaneously. The current show runs at about 1/4th of that initial hope.
IMO given the show and stage they built, that was a ridiculous estimate to begin with and entirely unrealistic; but I think there was a lot of that kind of overestimating park-wide, which is why they're in this capacity rut in the first place.