Regarding: Why not add “and you will always have an empty seat next to you”.
Well they can’t say that, because on Boeing 767 aircraft the old policy of stretching seats is still in place as the configuration is 2-2-2. So they can’t claim there will be an empty seat. Unless they state it and put a little asterisk next to it which is explained in the small print except 767s.
Well done, to anybody who has managed to get British Airways to take a complaint seriously.