I understand. I haven't been keeping up with the details because the new rule will not hurt me. However, when I moved the tribe to Malta three years ago, I would have not flown with BA because we had a huge amount of luggage. Six persons, 64Kg each, flying in coach. We would not have been able to fly on BA with one bag per person at 23kg.
I think I will make sure I am not flying through London in September.
Thanks!