I haven’t seen the video, but from your post it all sounds reasonable. Even at idle the safety zone in front of a turbine engine is probably 7+ feet.
Especially while turning you have to push the thrust up, so that distance can go up to like 10-15 feet, maybe even more depending on the engine.
Also, even if they saw him, which in the dark at an airport would be pretty hard to do, shutting the engine down takes time. And I don’t mean you can’t shut it off, I mean after you turn the switch off (Airbus at least) it takes at least 60 seconds for the engine to slow down to a speed that would only maim you, instead of kill you.
Truly no original ideas left, just regurgitate the familiar brand over and over.