Originally Posted by
FenLandK
I think the difference between connecting pax and those that are commencing their journey from LHR also needs to be taken into account. One could argue that BA isn't responsible for latecomers at landside security at T5, but they may well be responsible for transfer pax (assuming they have come off another BA flight).
This is true.
Also we know that connecting passengers will be travelling. Those who've OLCI'd at home and just carrying hand luggage may have decided for whatever reason to no longer travel. This happens a lot more than many may thnik.