What's the consensus on burnouts?

No one is going to be close enough for anything like that to happen, but I get your point.
My camera's have remotes, so no need for anyone to be around the vehicles when on video.
When you have already had one heart attack and the doctors tell you you're very likely in for more that could kill you it changes your perspective on how you want the rest of your life to go.

I'm not against doing it. I think you've misjudged me. I'm all for it. Just be careful. Take precautions.