Wy does it need saving? it isn't like Concorde where which had British involvment and there were only a handful , such that when BA/AF stopped flying them, that was the end of their service and are now only museum pieces; keeping a aeroplane type for posterity when they cease to be in use makes historical sense
These are neither British heritage , nor are they the last in service; the aeroplanes are still flying. There is nothing that I can see that makes BA's ones special - it is no different to any other aeroplane that BA has operated such as DC10s , 707s and L1011s