This is the reason why when my friends that are new to the game can receive my help for just about any story dungeon other than Praetorium. I have done that dungeon once, and once only because the first time you face Ultima on the elevator and the boss preceding him. Those are 2 technically long fights on elevators that I simply cannot handle mentally. I have not attempted Coil turn 4 because of the same reason, even though I have more than enough gear for an attempt.

It isn't necessarily motion in the background to simulate movement of some sort. My threshhold for this sort of thing is actually Garuda (any difficulty) due to the fact that we're in the middle of a swirling tornado. When I first saw Garuda, I told my friend making the attempt, "FFS I hope I one-shot this boss when I get to that story mission because I don't see myself being able to stay in here very long." Even the forced cinematic at the beginning of turn 2 can be pretty bad for me on a bad day.