This! Bobcat Steel is great.
USPSA/IPSC has 7 yards as the Minimum distance from steel targets. I would recommend at leas that as well for handgun rounds. Rifles I wouldn't recommend anything closer tan 50 yards UNLESS you are using frangible ammunition.
We've shot our targets with a 50 at 30yds....not that i'd recommend it, but we've done it.
That video has so many unanswered questions that I don't even know what to say about it, lol.