They have ancient 777's
....along with "ancient" (but no doubt well looked-after) 744's and 763's. It's what BA (and the likes of LH and KL) do, and no doubt the accountants like it.
for what it used to be with high standards all round
Like it or not (and I don't either) those days are gone. BA need to compete, or would you rather that they re-trenched/specialised to a point where the average Joe can no longer (unless perhaps he has a generous employer...and there aren't many of them left either) afford to fly with the flag carrier?