Hey look, your out of context stuff again. I responded numerous times saying the following.
1. as you engage maintaining situational awareness so you can watch elbows and knees. if you practice proper scanning this also lets you see the hands and waist band.
2. if you want to grapple, and grappling does work, don't go into a clinch that limits #1. Go for control of an arm. If you go for the right arm 90% of the population will not be able to stab or slash, if you are faster they won't even be able to draw because 90% of the population is right handed. Then with the proper arm bar (like I said none of that fancy one handed crap), you get in as superior a position as the clinch (in terms of control) for striking, though the strikes are to different areas. You can still strike with kicks to the knees, achillies tendon (both of which can easily disable the opponent) etc or knee the subject, or you can take the person down on their face and you are then in perhaps the most dominant position period.
The above is not "story driven" martial arts but techniques used by PROVEN martial arts like Filipino Kali (unless you consider it's success against insurgents and separatists as the hand to hand system of the Force Recon Marines of the Phillipines "story driven") and Jujutsu. Since you have liked these guys in the past go to 1:10 for but one example of what I am talking about.
That said these techniques from FMA also work BUT there is a BIG difference between what you see in this video, than the video you linked earlier. If you find yourself in a knife fight without a weapon you must use footwork and the footwork is a lot "wider" than what you use in an unarmed fight. The lack of widening your footwork is the biggest problem I see with many "unarmed" fighting systems. The video you linked earlier showed very little foot work which exacerbated the issues of the questionable techniques.