767 in the hold at BNN or somewhere has agreed to swap approach times with the Conc to save embarrassment. Not really in the spirit of things, I suppose, but if you are paying £X,000 for a seat you have the right to queue jump, don't you?
I see no problem with that at all, (maybe if I was in the 767 I might see differently! The 747-400's that travel the Pacific (~13.5 hrs- 14.5) on a daily basis receive dispensations on fuel reserves, and holding requirements at I believe SYD, LAX and SFO, effectively jumping the queue.
Aviation is all about innovation (look it up) compromise (how do think the things actually bloody fly!) and coordination...looks like BA and the crews did all 3 three to me in this case...you blokes might try it one day.