The other issue which has been addressed to a degree but it seems that competitors are getting around it is, the requirement to have competed in 4 other meetings before being eligible for a Scope entry.Scope is primarily an invitation meeting so they have some control, but under normal circumstances competitors only have to have a competition license, a vehicle with enough money to run it and they are away.
On our open highways come holiday time we have the roads full of drivers who have not driven much over 50kms all year and are let loose to travel distances they only do once a year at speeds they are unaccustomed to.Hence lack of concentration, speed,road conditions are foreign to them and so there are mishaps.
It would seem this is the case with some classes of motor racing, classics being one of them. Late middle aged males who can now afford to take to the circuit,who don't do their own building ,maintenance but are basically cheque book racers who's perceptions of the efforts that go into rebuilding damaged cars only goes as far as their bank balance and is not really relative to anything like reality.
These are other area's where the modern safety direction is needed to progress to, you can't legislate against idiocy.