Dude... blue shorts was on his the bottoms of his feet staying upward and moving the whole time. When the second dude got pummeled he literally had his back on the ground for a good while and he ATTEMPTED (a weak attempt at that considering he just got rocked) to stand up. I can guarantee you that had it not been stopped, blue would definitely have not let him stand up with the position he had, so he would have just taken more of a beating for no reason. So the ref did a good job in preventing pointless damage for an already won fight.

Plus, you can hear the ref telling blue, 'keep your head up' both of them knowing full well he'd stop if he didn't. He still had the wherewithal to do so. Whereas if you told the second guy on the ground, 'keep your head up' it's a little more like 'sorry I just took 15 face and head shots and now his body weight is on me and he has a very strong posititional advantage'

Absolutely fantastic ref IMO.