a game of chicken
WW has been engaged in a high stakes game of Chicken with the regulators all afternoon, he launched 24 wide body aircraft to LHR scheduled to arrive between 1900 and 0400 and then stood back to see if the UK government and associated agencies would back down or if they would stand firm and take the flack for the diversions. A number of them diverted before the government caved in.
WW has won the game, who is correct and incorrect will be decided in the coming days