Could we have some statistics, please?
How many airshow spectators have been killed in, say, the last ten years due to the crash of an aircraft during the show?
And how many have been killed in road accidents driving to or from the show?
Flying as a pilot in an aerobatic team, or flying a warbird, always has meant accepting a certain amount of risk. Accidents happen.
Pontificating about "airshow safety" in a forum like this appears particularly futile. The pilots are not suicidal. The public knows the risk is not zero. The organisers do everything they know to make things as safe as possible.
Let it be, unless you REALLY believe you have something valuable to contribute.