If being an innocent bystander makes a difference, then surely that applies to other events?
I loath football, yet it continues.
Many have died in stadiums, but many more have been killed/injured by hooligans ouside of stadiums/in bars/train stations etc and the general level of negative impact on the outside world by vile football fans is enormous.
Would you ban it because of this?
The only way to make aviation completely safe is to stop it.
This accident is no surprise. Nobody tried to make aviation completely safe.
An accident was always going to happen eventually, that is the nature of probability.
One accident is not too many, that is merely another vacuous statement that comes along with "you can't put a price on life"
Yes you can, and the world does every day.
Those who recommend making the displays more tame miss the point. Old duffers may watch vintage planes nimble around with a terry eye, but the young want excitement.
Tame displays is just a slow death for air displays.
People want excitement, and frankly though nobody seems to admit it, they want danger.
This western obsession with risk aversion is the slow death of our civilisation in my opinion.