The An-2 has never been designed to do aerobatics, even low key as done here, doing so at low level is definitively not recommended as reactions on the controls are slow and with inertia. ( I have flown it)
I am also doing presentations at airshows with an aircraft not designed for it. Better keep to low passes and tight turns , and not try to imitate stuff you see the Extra do, like here..
That said,another very sad day for the airshow community , and RIP to the pilot..
