After reading this I still don't understand why the "BA brand is hanging by a thread"?
Sure, they have things they need to work on, but if you have flown many other carriers, you will realise that grass isn't always much greener in the other side. And you will only stay with BA since you have a few hundred k in Avios doesn't say much in terms of your loyalty to BA, so why should you expect so much more from them?
I am by no means a "BA apologist", but am also a firm believer that loyalty is a two-way game, hence my query :-)