Of course CM's are going to be stressed when you don't start training them until only a few weeks before the ride opens. The only thing that could be problematic really is the swinging of the cars. Although the trains are fairly small and I imagine good portion of WDW's visitors of a certain size not being able to ride. Sort of like FJ all over again. Other than that though, if the swinging is working the way it should, it's just a coaster. I see this as trying to make something out of nothing.