That's their decision though. Does anyone know who else has received this award? Its hardly going to have been a surprise to them that it was going to be a controversial decision but they gave it anyway.
Frankly its far more important that the Knighthoods, CBE's, OBE's (Order of the British Empire, still, 70 years after the end of Empire) etc that are given out to various cronies, tax dodgers and people who should be in prison discredit the deserving awards given out to people who do genuine good to the community. When it has become more honourable to turn down an award than it is to receive one.
The outrage about our National awards, given out by The Crown on the order of His Majesty's Government to fuckwits who can then sit in the House of Lords and make decisions on our laws is nonexistent compared to the outrage that some small American aviation charity that has nothing to do with us has decided of their own volition to give out an award to Prince Harry.