Originally Posted by
Doc Savage
There are no known previous instances of the British working class deliberately using passive aggressive tactics to take out their frustrations on those they see as snobs, so I would say, no, they are likely not doing his.
Cheers.

Plenty of airlines can manage it at Heathrow - VS, UA, AA and CX amongst others.
I personally think the issue is a lack of focus from BA. There probably isn't a priority baggage delivery metric so no-one is really that bothered.