Exactly atomkraft, so what do we "think" we know, well at the moment nothing points towards anything but pilot error? To low an entry for the manoeuvre ? Faulty procedures at the maintenance company? Life expired components? The need to revise air show procedures?
If that is simply the case then surely they would audit other companies also carrying out Hunter flying and if everything checks out maintenance, pilot currency, and lifed components wise, why are they not being released to resume flying?
After all, the planet is littered with pilot error wrecks, and one does not see the myriad of other types from 737's to Spitfires grounded.
It just all seems strange that resumption has not been resolved all be it for a limited amount of operators, carts etc could be months old on some jets, not years, or did every company miss understand the life limits, and if they did, then that speaks volumes as to any ambiguity.