Hell, they could have been training on and off on spidey for weeks. They could be all set and ready to go, short of any minor differences and words in the script. Too, there must have been some spidey crew that signed up to work this. Happens all the time. If the ride and queue is ready to go, then I am sure everything and everyone is ready to go. They just needed to see the building and vehicle load area and trained in evac.