Why can BA not make an exception at LHR where we have a lower height at which we must be fully configured and stabilised. The reason for the slightly conservative BA numbers was/is to keep a firm grip on the avoidance of rushed or high energy approaches.
At LHR due to the clockwork precision and consistency of the controlling this is never an issue. Therefore an exception could be safely accommodated.
I notice that the 411a has to add his standard (and tedious) format comments which seem rich coming from a resident of a country where I have experienced more cockeyed, uncoordinated, impossible to achieve and sometimes downright dangerous ATC controlled approaches than possibly anywhere else in the world.