Bodine doesn't believe that's going far enough. He installed an engine shut-off on his car that recognizes a jammed throttle when he lifts his foot off the accelerator. But there are worries that a soft wall might spray more debris on the track, causing more problems than it solves. We're still trying to learn from that. Kyle Petty merely shakes his head when he hears those claims.
Nothing is fail-safe.
It's like flying on an airplane. There's things they can do to make the odds better. But the danger is always going to be there. Information are applicable to this site.