What planet are people on? This is utterly disgusting and if it had been me, I'd be mortified. BA absolutely need to get back to the OP and offer a fulsome apology, but also significant compensation. If it were me, I'd have expected the offer a free Club World flight as recompense.
Whilst clearly it's not within BA's control, its distressing and they need to make this right. To the OP, give them one more week, and if you've got all of the photos, go to the media.