As for the Judo fails, you didn't pay attention to what i said in the video.
I did pay attention. I disagreed with everything you said in them.
Lets start with your first Judo Fail... the one where the gal, KOed the guy with a throw.
1. You said she didn't try de-escalating verbally. Why did people turn their cameras on in time to film the physical part? They overheard or saw something developing. From their actions at the start, they were definitely being verbal with each other. She may have failed de-escalating verbally... but its not always possible to do. Besides, you would not have picked a clip where it was successful.
2. You froze the clip while she was off balancing the guy. You said she left herself wide open to an attack, if this were a multiple attacker situation. Well, if you are going to pause video, then imagine you could magically make more bad guys appear, where you wanted them to attack her... then sure. But, there does not exist any technique that is immune to that. Even just standing the best guard you know of... I'll pause the video, and point to where the guy could be standing right behind you, punching the back of your head. Whats more important is that she was not in a multiple attacker situation, which she seemed to understand. What you are calling a failure of the technique, I am calling an effective entrance to her technique. I define it as successful because she KOed the guy with that technique, that she started with that entrance.
3. You paused the video again when she had the guy loaded and was starting the throw. You said that if he had reacted, he could have done anything, because he had her back. First off, you are showing that you have never been thrown like that by anyone that knew what they were doing. It happens much faster when you don't pause the video. When you are far enough off balance for that throw to work, like it did, you can generate very little power as your structure is compromised and you cannot root. From that point, there are a few things you can do, but most of them involve taking the fall anyway. That entrance you didn't like, got her in deep enough that the throw was going to happen no matter what he did. Further, he did react... he was trying to figure out how this little girl was hitting him with the earth.
4. You then pointed out the big problem, had she not knocked the guy out, he could have got back up and continued to attack her. First, thats true of any technique, from any art. If you don't cause the other guy to be unconscious, he might try to attack you again. With a throw like that, especially outside the ring... you have to worry about more than just a KO from hitting your head. You could also injure your neck, back, shoulder, clavical, knees, ankles, elbows... the list goes on. Many of those injuries will end the fight, even with out the KO. Most of them will limit what he can do, should he continue to attack.
Here is what you missed. You are very concerned with multiple attackers. First off, she was aware that she only had one attacker for the moment. Also, once she finished the throw, she popped right back up to her feet and was mobile again, able to run or fight the next guy.
If she were in a multiple attacker situation, lets go to point 2, where you showed that she was vulnerable from behind. Her entrance, would have moved her away from the guy behind her. Yes, he could have followed her... but then her throw would have thrown that guy into the second guy behind her. Even if she missed, the second guy now has to find a way around the guy KOed on the ground in front of him, to get to her. Remember, she was right back to her feet. She now has time to run, throw a 3rd guy or grab a weapon of opportunity. If she didn't KO the guy, now the second guy, has to find a way around the first guy, who is also trying to get back up... this may buy her even more time to run.
When dealing with multiple attackers... you need to stay mobile and find ways to reduce the number of people you are fighting. With this single move, she would have gotten herself outside the center of attackers, KOed one guy reducing the number of attackers and put a barrier between her and the other attackers. That very effective for one move.
What if he had a weapon? Well, he didn't have it out yet. She executed one move, that dumped the guy on his head with the possibility of KO, head injury, neck injury, back injury, shoulder injury, arm injury, wrist injury.... All of which will slow him down and or prevent him from using a weapon. Further, she was able to gain her feet again much quicker than the guy she threw. This gives her a head start to run away while he is getting his weapon.
In all cases, what she did proved highly effective. All the problems you have with her technique are problems with all techniques. We don't yet have techniques that can deal with time stopping so that more attackers can magically appear. The issues you have are solved by being aware of your environment. This gal demonstrated that she was aware and even after throwing the guy, popping back up to be ready for the next attacker or the guy to try to continue.
To sum up, I disagree completely with your analysis and your conclusions.