I'm with Wingswinger here. The Hunter did not appear to be pitching anywhere near enough in the third quarter of the loop. Now there could be many reasons why, including a technical snag or simply pilot distraction looking for the display line or dealing with something in-house. The pitch rate did increase dramatically in the final quarter, but by then it was too late.
Regarding the venue, some of the built-up areas do encroach on the airfield, but apart from having to avoid flying over the college, ie having to extend behind it or tighten inside it, it is certainly no worse than many other venues. Simply bad luck that, if the accident was inevitable, AH crashed onto the A27 and almost parallel to it.
It could well be a long list, but I fear the likes of Duxford and Farnborough are now going to have to have a long hard think about their display regulations.