AH was flying high intensity low level aeros in a public arena in a high performance swept wing jet that he had less than 40 hrs total time on type, spread over the last 5 years. He left the RAF and regular service FJ flying 13 years previously, during that time for the day job he "flew" a FBW passenger plane, he had also regularly flown a lighweight single-prop for display flying over a prolonged period, his current cat G DA was attained (lawfully) by performing a "tail chase" routine as one of a pair of JPs yet that same DA was deemed sufficient for him to perform high energy public displays in a Hunter, the A27 was a known risk at the venue (I'm pretty sure the Reds struck it off their list of approved venues some time ago for that reason), some of the key rules and regs were unclear / not adhered to, e.g. "guidance concerning the minimum height at which aerobatic manoeuvres may be commenced is not applied consistently and may be unclear", "Training and assessment procedures in place at the time of the accident did not prepare the pilot fully for the conduct of relevant escape manoeuvres in the Hunter" (quotes from AAIB reports), he was potentially flying an unbriefed (but still perfectly legal) display routine, he's not that young, it was the hottest day of the year. How many more holes in the cheese do you want?
This discussion shouldnt be about legal mumbo jumbo, this was a failure of "the system", plain and simple for all to see. AH has had his time in the spotlight, rightly so, whilst the faceless bureacrats that allowed this tragedy to unfold just get off scot free.
Just my opinion of course.