I rode last week and can confirm that the urgency is indeed just show and CMs will quietly break character to remind guests who look like they medically need the extra time to take that extra time. This happened everywhere.
I also witnessed a loading CM in character talking to someone using a sight cane at the front of her line and slid in some extra directions that would benefit her. It was done really well and seamless.
The big room with the stormtroopers is where you drop off your
ecv on the way out and that is an area you can stay as long as you want and ask any questions in a non-rushed way. There are dedicated ecv CMs and I asked them about who and what I needed for the TAV. There are breaks in the crowd between unloadings of the first vehicle so that isn’t rushed either.
Two vehicles load at a time but you can take as much time as you need. There are many load zones/rooms so if one takes extra time, I think the other vehicles in other rooms keep moving and the whole ride doesn’t stop.
I asked how many TAVs there were and the CM didn’t know. Even when my pre-show room for boarding the second vehicle broke and we had to be removed and placed in another room, a CM said it didn’t matter what row I was in (front vs back) because we got switched in the move and it didn’t seem like anything special was done to get me a TAV in the new room. So I think there are tons of TAVs. I loaded into the front row.
In my experience on both coasts, if you only have a limited time to load, they will ask you before you are put in a loading line. You almost always have enough extra time, CMs just have to implement their strategies to get you that extra time before the ride cascades and causes an evacuation. On PP in DL they send your vehicle empty around once so you get extra time because no one is unloading when it gets to you. On Matterhorn a vehicle or two is pulled off the track. That is unless the loading CMs are overconfident in their ability to quickly load you and the ride stops and causes a full evacuation. It took a long time to get out of a CM that the evac was caused by my situation and being slow and they refuse to blame it on a guest and were always saying that they as CMs should have done more to prevent the evac because they don’t want you to feel bad.
The CM when I exited at RotR knew my device belonged to me so they have a good system for tracking and it allowed me to exit quicker. I’m assuming this is also how Reedy Creek finds you during an evac.
I loved the ride and felt the CMs were all trained well enough to handle transfers of my kind and mobility devices.