I cannot begin to count the number of times a "street fighter" who was insistent on using foul tactics as the answer to grappling failed miserably at doing it when rolling with a good grappler. Like the new cool ammo that was designed by a computer (like Rip) and is supposed to be so awesome but fails in the real world.
I say this from quite literally multiple decades of experience. This July will mark 40 years of active and continuous training to fight another human being. And more so, I am not talking about it from someone who has only done BJJ. I went through a long period where I was one of the main instructors under someone who was probably the most visible proponent of eye gouges, biting, groin strikes, etc. (in fact, I was one of his first 7 full instructors he ever certified). He even did a number of video instructionals that taught that concept, including how to train it. I put in decades - with zero exaggeration - of working this material, including in what we stupidly referred to "field testing", and the fact is that it does not work one bit when the other guy knows how to control the entanglement.
Disengaging and not getting entangled sounds great, but falls down in application because the other guy has a say in the matter.
I also find it hilarious, as one of the posters stated above, that the non-grapplers always think they are the only ones who know how to do that stuff. When you have dominant positional control, you get to do whatever you want, and it works.