Globaliser

BA could not have done that without taking measures that were utterly unreasonable in the context of a purely cosmetic defect - particularly as the specific aircraft's allocation to a specific flight takes place only about 3 days before the flight itself, and even then only on a provisional basis which is subject to change up to a couple of hours before departure.

If you think that there were reasonable ways in which BA could have done this to satisfy your demands, perhaps you could explain how that could have been achieved? Generic suggestions like "the seat should have been blocked" or "the seat should not have been sold" don't even begin to address the mechanics and consequences of doing so, some of which have been pointed out to you.

It seems to me that the only ways of doing so would be never to take more than 7 reservations for the F cabin on any flight which this aircraft might potentially operate, or to keep the seat empty by downgrading someone from F to CW simply to avoid them having to experience the utter horror of looking at this defect during the flight. Both seem utterly unreasonable and over the top for a cosmetic defect.