Listening to the communications on a different source, the controller said "An ATR (unintelligible) pushing back behind you to point Bravo". That was it, no call signs and no instruction to hold etc. Surely, the ATR should not have been given clearance to push back if it was going to conflict with the BA flight? I also think the pilot reported his intention to file a report in a calm, matter of fact manner. No "haughtiness" or arrogant about it.