I’m not convinced about the ticket price argument. Looking at it the other way, you could argue that the reason why BA’s yield in F is lower than other carriers (if indeed it is) is partly down to the poor and unreliable F product. If BA goes down that route then F will just become a slightly superior J, along the lines of the way AA is going.

And yes, I agree that BA’s F seat in the 789 is bigger than in other aircraft. It’s all down to perception though. Certainly in 1A or 1K the perception of space is affected by the bulkhead ahead of the centre seats, as well as the foot traffic and noise from the galley. Also, this was the first time I’ve been in one of BA’s 8-seat F cabins, although I’ve been quite familiar with the 14-seat cabins in BA’s 380s, 777s and 744s. Maybe the fact that BA scrimp on space by canting the seats away from the aisle is a factor. Certainly the other 8-seat F cabins I’ve been in recently (AF, JL, NH) all have seats aligned to the cabin wall, increasing the feeling of space.

But yes, I realise it’s a first world problem. Just an observation, which was probably affected by the specific failings of this particular flight.