RV: you are correct. Who is in charge of GPMs on board? The CSD, who is often very selective as to who gets one.
Completed GPMs are collected by..... the CSD, who conveniently has to visit the office shredder to dispose of the passenger list, so....
At least BA's proposal will stop the boredom of the CSD I flew with recently who announced that he had nothing to do (a full far-East flight BTW)
Edited to add, as I just read SPs post: another reason could be that the CSD has time at LHR to massage the system as described?
Why do people here pontificate about things they have absolutely no idea what they are talking about?
Do you mean
Why do people here state the true facts which run contrary to the official BASSA line?
SP, many of us here are perfectly well qualified to comment and contribute. We do so because we care about the company we work for and don't care to see it dragged down by....