I'm shocked because if a plane has an open bulkhead seat, what difference does it make to them to let me sit in it? I have a legit reason for requesting that seat. It's empty anyways.its not like I am asking for extra legroom just for the legroom.. I'm asking for it because otherwise I am in pain on a 9 hour flight.
That argument can be made daily in life at almost any place of business.
If i own a restaurant and you are the last customer of the day, i can certainly give you a steak for free... But you are not entitled you it just because it will otherwise go in the garbage.
If i own a hotel, and you check in to your kind bed room with your 4 wives and 17 kids. Should you be entitled to the presidential suite because otherwise no one will sleep? Its going to go empty otherwise! I'm going to answer that question because I'm afraid to see your response - the answer is no. If you want the suite, you pay for it.
If you are in pain on a 9 hour flight, it would seem you ABSOLUTELY have a legit reason...to pay for the better seat! I'm also in pain when i fly economy ... And so is everyone else.