I also have flown with the Capt on a few occasions and have found him not only an excellent pilot, but also calm, reasonable, considerate and he buys the beers. That's my view on him.
I also behave at airports when I'm a passenger and wouldn't dream of slow hand clapping or berating an airline crew, no matter how ironically as I would consider it to be an insult and add nothing to a situation that I know partially or nothing about.
Believe me the MIA layover isn't the most stunning on the Virgin network and you can bet that the crew wanted home as soon as the passenger did, the allowances, hotel and weather are hardly an incentive to stay there.
Flying the world as a crew or passenger will mean you have delays, for various reasons, sadly it goes with territory. I'd rather my crew doesn't operate until they are fit, the aircraft serviceable and the weather healthily. Moaning is natural; we are all frustrated, I guess we just have to button our lip at times, even if it does feel you are being kept in the dark and being fed manure.
I've also been on flights where a few ringleaders have ensured that the cabin crew have had an utterly miserable time when things have been blown out of proportion.
I suspect that if you'd tried that before you'd got on a US based carrier's flight you'd still be in a cell at MIA without your shoes.
I think things have got a little blown up out of proportion and we should not read too much into what was quite a minor incident and possibly learn from it when the truth comes out.
I'll shut up now