Let's examine what you wrote and what it means:
I bet if you were assigned to a work project where you were locked into a small room with little to do except talk to your lone coworker locked in with you for hours on end, and tape-recorded constantly, you might deliver something less than Ciceran oratory at some point too.
Who locked them into the small room against their will? Who forced them to do the job? Are they working under these conditions against their will, or did they knowingly accept these conditions as a part of the job? Are their conversations being secretly recorded or are they aware that everything they say will be recorded for posterity?
Now that the insults are out of the way, my point was that even people who are highly trained professionals can joke around on the job without compromising their work. If a surgeon puts on some rock music or tells a nurse a joke, and his patient later dies because the life support machine fails, is the surgeon an "idiot" or unprofessional?
People like you always resort to insults, so it doesn't surprise me to read them here.
Non-sequitor. I said nothing about jokes, nor did I insult them. I only pointed out that no one forced them to be sitting in the cockpit, just like no one forces you to be there.
If they didn't like the conditions, they could've walked away from the job and there would've been a hundred more in line to replace them. If you really are a pilot, you'd know this to be the case.