Only slightly off-topic; this sort of thing seems to be part of the martial-arts scene for quite a while. I well remember the young fellow (Heydrich? Hydrick?) who appeared on "That's Incredible" years ago with his abilities to move objects with his "ki". He was outed by Randi...
When actors Steven Seagal and Jean-Claude Van Damme hit the scene, both made claims that proved to be untrue. Seagal said he had studied Aikido under Ueshiba himself; the Aikido foundation said..."not true". VanDamme claimed to be a kick-boxing "champion" in Europe, till no one could find his name on a single pro fight....
We're discussing a more contemporary fellow over at one of the "tactical" forums I subscribe to; one of those "defensive systems" types.
The guy claimed all sorts of military and intelligence creds on his site; Special Forces, various tactical ops associations, extensive martial arts experience, etc, etc.
Then it was discovered that he had only been in the military for 8 months, assigned to thoroughly non-combative duties..... A complete fraud.
When the "kung fu" craze hit years ago, many the "Karate" studio quickly hung out a "kung fu" shingle; one can see the head instructor furiously reading his way through a couple of books and maybe watching a video or two...
Much the same when the "ninja" craze hit some years later. At the time, there was one and only one certified instructor in the US who had actually been authorized to teach what is now called the (above mentioned) Bujinkan system. Yet miraculously, hundreds of instructors appeared, many claiming to have received instruction in "other" schools by mysterious instructors who were now conveniently dead....
I remember a Black-Belt interview with one of the Japanese ninja film stars. He had been trained in straight Japanese Karate. Asked what he did differently in his ninja films, he said that he tried to make his moves look more sinister....
There are large numbers of reputable, certified, well-trained martial arts instructors around.
There are also a fair number of frauds.