It's a natural conclusion to come to about the windows, they're such an odd feature!Thanks for that insight @Mytran! I was racking my brain to find out where I had heard the bit about the cameras but couldn't find anything concrete. It was likely just speculation that I took to heart because at the time it made a lot of sense. But your pic from "Amok Time" makes it clear that they weren't shooting through a hole in the wall.
I have removed that bit from my video, although YouTube says it will be about an hour before the vid is updated for all to see.