The way I heard it the DLH pilot was expecting some delay and didn’t quibble when told 10 mins. From the video timeline, 14 mins later they’ve not had an update and the controller refuses to entertain that “conversation” at all. How is the DLH supposed to know if they have enough holding fuel if the controller can’t(/wont) provide a vaguely accurate delay?
Yep, could be.
I think though that if the LH crew had been a bit more professional and less confrontational, then they would have probably had a much better outcome.
Saying something like "Roger - just for your sequence planning; we have x minutes of holding fuel before we will need to divert" would probably have got a better response.
Having instead used the F word and cowboy sounding Ha !, and "what is the problem" etc., very quickly put them to the bottom of the ATC priority pile.
It's basic human nature: If you want someone to help you and cooperate with you, don't come heavy handed or swear at them.
If your neighbour said "if you don't move your car it's going to f**k up your day", it would instantly put you into fight mode and much less likely help them, than if they said "hello mate; is there any chance of moving your car a bit?"