Do some YouTube searching. It is loaded with George Dillman and those like him that tout this idiotic nonsense, and them being exposed for the fakes that ALL OF THEM are.
Do I have indisputable proof, no; however, neither do they.
Someone is telling a lie. It’s not real.
I spent almost all of my 20s looking for stuff like this that worked, traveling to seminars, etc... What I found was that every bit of it was fake.
I have no reason to believe my judo instructor was lying. He had nothing to gain from it. I guess you don't believe in pressure points then?