Cows, with respect that is utter tosh.
Even a cursory google will show that the location of airshow crashes is scattered all over the place.
Off the top of my head I can't think of any other crash that was off the extended threshold of a runway.
This was a very strange crash in that the manoeuvre was a mild positioning event rather than anything tricky.
The simple fact is that it is not possible to fly a display without overflying houses, cars, people, town etc.
Go and have a look at what is under Fairfords display area. Or Culdrose/Helston. Or Yeovilton/Ilchester.
You cannot display without overflying the public.