Hoplo, you weren't there.
However, present at the shoot we had:
A Utah CCW instructor
A Utah Hunter's Safety instructor
An Army Marksmanship unit instructor
A Department of Homeland Security Firearms instructor
Local law enforcement
3gun match directors
Between them, we had over 100 years of experience running ranges.
We coordinated, and came up with the best solutions that we could. It was an open invite shoot out in the desert. We didn't know each other. It was random strangers off of the internet.
You watched what is basically a hastily edited music video, and now you're the expert?
Considering that, we ran a very safe range. Yes, people do tend to get forward of the line. When that happens, you correct them.
That's why I used the trail as the range demarcation line. It was obvious.
And I don't give a flying crap how you interpret the law in your area. Here in my area, we were fine. The law enforcement that was in charge of enforcing said ordinances had no problem with what we did.
We controlled the backstop as much as possible. Everyone was responsible for calling a ceasefire if there were any signs of movement in the backstop area.
We don't have trees here. So it's kind of hard to sneak up on us.