It's weird that they'd have the crew in the frame anyway. Was it really not possible to have them out of frame? I guess being able to "do it in post" makes people lazy?
It's the fact that shooting is enormously expensive per-minute, and time-constrained. Think of the sheer number of crew involved. And then think of the sheer number of shots you have to get per day, to stay on schedule and on budget.
If there was a mixup and it's going to take half an hour to get and set up a longer hose, it's much cheaper to have 1 person do it in post if it takes a day, versus delay the shot for half an hour while 50 people wait around. (And no, you often can't just shoot a different shot in the meantime, because that involves rearranging the lighting and set which takes just as long.)
And having the real product on set allows the other actors to give realistic reactions.
Given the volume of material these streamers are handling, I expect QA is minimal. I remember when I was watching Frasier on Amazon Prime, a bunch of the episodes had been configured to play in the wrong aspect ratio. Clearly nobody had ever bothered to check them.
Yeah, I expect QA is minimal for these shows that are past their prime. Only fans will really watch them again, it's probably not worth it to spend the extra time to review every single episode. (But of course, fans will care! I'm just saying it's probably not worthwhile for HBO to check)
I set up custom ingest workflows many cable companies around the world and they all worked the same. You just had to trust that the providers sent you good copies and get them to fix their shit if it was wrong. Most of the time it was bad metadata (episode description, ect).
They were set up to shoot that scene that day and they were on a tight schedule. They started to set up and they realized they only had 12 feet of hose, or that the pressure dropped too much with a longer length of hose. They discussed all the options, and fixing it physically would take too long or be too expensive. Thus another "we'll fix it in post!" moment was born.
Edit: I jumped the gun and thought we were talking about the Friends screenshot.