I watched all three linked videos. The first one is stupid, and is the kind of stuff that amateurs do. Someone else will copy it and get hurt. I think he is trying to think smartly about training, and then executing poorly.
The other two videos were much more interesting. Too fast to really say too much about them, but he seems to have solid technique and except for his reholstering, he seems to be safe.
There is no question that he is fast, and seems to be consistent. Seems like a decent guy too.
Personally, I think that he is working on a hardware solution to software problems (so to speak), but I have no idea how much time and effort he spends on that stuff, so I can't say anything too intelligent. It is just a short clip, not a dissertation on all aspects of self defense.
I think that civilians are perfectly qualified to teach self defense, if they have a relatively long history of high level training and ability. It's not SWAT stuff and it is pretty relevant to everyone's personal life. Some guys are able to think very well about this stuff, and when you combine that with really good training/research/practice, things will probably work out fine. Experience is always better to have, but sometimes the wrong lessons are taken from individual experiences. If he was writing for Operator magazine, I could see the disconnect.
As far as the speed and skill shown, like I said, he seems to have good technique and is a fast guy. The targets are at like 3-5 feet though, so let's not pretend this level of skill is unheard of. I don't think I could shoot three times in 1 sec at that distance, but i know I can do 2. I almost never do that though, because I really don't favor drawing my gun at that distance.
The best statistics that I am aware of, talk about officer line of duty deaths. I have never seen any that address civilian fights.
If he's being safe (which he is 2 out of 3 videos here) and he's not a jerk, I say more power to him.