IB, well said, and yes to both of your questions.
As I have said before, a great many people are going to come under scrutiny after this accident. Everyone involved with operating the aircraft - maintaining, flying, planning, training, authorising etc.
Everyone involved with the flying and risk assessment aspects of the airshow. The decision, if there was one, to allow that display over that road, is clearly also going to come under the spotlight. The regulations and regulator too, because there are going to be many questions about experience, competence, training, currency, display planning and authorisation and probably many more things beside.
Bear in mind also that this came only a few weeks after the Gnat crash at CarFest which could have a different outcome.
S-D