The US is cheap. We even famously have large gaps between the door/stall panels. I can only imagine it is to accommodate temperature/humidity changes so that they don’t jam.
Nicer places sometimes have actual deadbolt locks connected to a vacant/occupied indicator on the exterior. But it is rare. Usually it’s just a gapped stall with a sliding lock that will often not even line up correctly without wiggling the door.
In some instances I have had to use my gym key fob in place of the missing sliding mechanism to secure the door.
With that stated. When the mysterious ship reorients itself to attack position, I can’t help but feel like it looks kinda like a face. But humans are hard coded to see faces in things, so didnt think much of it.
Edit to add: Bert literally stops the movie at one point to fourth-wall how hopeless everything looks. Ernie reassures him by asking what kind of movie would have a sad ending. Bert immediately replies Titanic.