Pontius, are you suggesting that there is a dedicated agency that regulates road safety (Highway Code), imposes safety defences (barriers, speed limits) and enforces it where necessary (Police), in order to protect all road users, because no activity is without some form of risk?? Would it be fair to say that such measures weren't all installed from day one, but instead EVOLVED over time or events on the basis of common sense and learned experiences, some of which may have been tragic? Perhaps an accident involving many deaths that gripped the public eye?
If that's the case I'd argue that the risk of the Red Arrows crashing into a built-up area ivo Farnborough - and the concomitant societal impact it would have - has just been reduced (in both severity and likelihood) by a regulator introducing an evolved measure. Or, to put it bluntly, doing its job.
The great John Derry's displays were also popular at Farnborough.....and regs were changed after his (and others') death.