I was a flight attendant for 10 years from the early 90's to the early 2000's. Long before smart phones and their ubiquitous cameras.
With the change in life that those darned things have caused, and knowing FAs and rules, it is quite possible that there is one or more FAs designated to getting stuff on camera if crap hits the fan midflight. After all, you can't have a dozen FAs dealing with an idiot. There isn't enough room.