The above is mostly a commentary on BAA rather than BA.
Having said that, Willie Walsh should be down there looking at every aspect their supplier (for that is all BAA are to them, just as much as Airbus or Shell are) is providing, or not. And raising the roof if things are not perfect.
Where on earth are the press statements from the top of BA that what is being provided a T5 is "disgraceful, an insult to Britain", etc. If said they would be on the front page in a moment.
I can only conclude that BAA have managed to get compromising photographs of the whole of the BA board to keep them quiet. There seems no other logical explanation.