I think you completely misunderstand my point. There are better options to escape the mount than biting or trying to attack the groin. You can say it’s some BJJ mindset but I can say the opposite: that believing in the effectiveness of certain techniques, such as biting, vs grappling situations are more effective, or just as effective, as using a grappling technique. And when that less effective technique fails, and it escalates the violence, the response from the person in a superior position will reflect the escalated violence attempted against him.
If my choice in a confrontation is bite or die, then of course I will do whatever I can to survive. But if I’m in that position it’s because things have gone very wrong. If I am mounted and go to the last resort, least effective technique first and it fails, then what? If I choose to use the most effective and efficient way out of the position, a way that utilizes physics more than pain compliance (what if the attacker is on drugs or insane? That can counter pain but not physics.), then I am less likely to escalate the violence as well as more likely to escape.
I started in a traditional MA when I was in 4th grade. One instructor was a Korean War vet who was missing part of his foot thanks to a landmine. Almost every move he showed ended with biting off the ear.
The problem with biting to escape the mount is that even if it were to work you still have to deal with someone who was capable of mounting you, who may now be even angrier and who, if he mounts you again is less likely to let you bite him again. It’s not like biting is automatically going to end a fight. People will fight with broken bones, knife and gunshot wounds, etc. And the reality is, for some people, maximal force will mean zero unless they are using a gun or some other deadly weapon. They are going to have to try and hang on and survive. For those people escalating things is even more dangerous. If you are a small woman and are the victim of an attempted rape by a man who is much larger maximal force is what? Biting him will end the attempt? Trying a groin shot when it has a low chance of effectiveness will make things better? If it’s all she can do then it’s all she can do but that doesn’t mean it should be the first thing she does. If she starts with proven techniques that are based on physics she can stay in the fight longer. If she initially resorts to trying to be meaner and nastier than her attacker then she is hoping that a rapist will somehow not be mean and nasty in response. I mean, he is a rapist after all.
I would say that learning how to bite or strike one’s way out of bad positions rather than learning methods that come from grappling based systems is wrong. They are less effective, efficient and don’t answer the fundamental question as to why you are in that position in the first place.
But they don’t always work. And if you don’t have to jump out of the airplane you don’t need a parachute in the first place. Biting to escape the mount is jumping out of an airplane with an unreliable parachute.