They didn't run 10s. They ran 12s but their stories get faster with age.
Serious money builds these days run 7s or high 6s. Nothing from "back in the day" runs like that, especially on a 10" tire.
The fact is, if people get hurt or die often, it gives the sport a bad name. It also keeps (some of) the idiots off the track. If people half-*** the safety issue, god only knows what else is jimmied together on their car. I don't need that clown running next to me.