Treble one
Are all airbus and Boeing drivers nothing more than average? Does an above average pilot (and I think you will agree that the RAF have no shortage of applicants so they can choose the best) simply become a systems manager the day he takes off his RAF flight suit and puts on BA uniform?
Regarding low level aeros, what is it about preparation you feel he was lacking in?
Is there any relevance to this accident that the plane was a fighter? That it was swept wing?
Maybe this accident would have happened to him on this day regardless of the type he was flying.....if he got undemanded power reduction? Maybe he was so off his game on the day, that he would have struggled in a Cessna aerobat?
That he was off his game and made a catelog of mistakes is clear. The question is why? Was there something else ?
All I am saying in my view it is more likely that other factors were present.