I've been training in martial arts since I was a kid. I'm with a traditional kitboxing school and an MMA jujitsu class. Believe me when I tell you that in our gradings when we do two or three on one sparring drills, (overseen by competent instructors who have also worked bar doors), going to the ground we'll get you finished rapidly.. In those scenarios, it's all about controlling distance, not being grabbed hold of and certainly not being taken down. Me and my pals will reach for the popcorn to watch how this actually plays out.