this is some mario level stuff right here
https://youtu.be/Ri4e_wpDc54?t=3m59s
There are better ways to deal with a situation like this than to order people to crawl toward you and threaten to kill them if they don't comply immediately and perfectly. You could have one or two guys keep their guns* pointed at the suspects to be able to react quickly while another checks the corners up ahead and establishes a perimeter so they can cuff the two (which is what
you can see these HRT trainees doing here, specifically the one guy who stands watching the hostages on the couch at roughly 4:27 while his buddies clear the corner). Don't have enough firepower to feel safe doing that? Wait for backup, it's not rocket science.
https://youtube.com/watch?v=6yaie4bzsFI
There's multiple guys watching this poor dude crawl down the hall. Non-lethal force is a viable option as a first response since he's not a hard target to hit with a taser while crawling around on the floor.
The main issue in this situation isn't that it's legal to do this, it's that it's both morally wrong and unprofessional, the same way you could blame SWAT for
that time they flashbanged a baby. If you are going to be dealing with situations like this, you
need to ensure the people you send have the proper training to know what the hell to do. Like I said earlier, it is very obvious that these cops were not properly trained to handle this situation.
However, if somebody takes heat for this, I genuinely hope it lands on whoever trained and certified these guys rather than the cops themselves.