You are going to get answers from both sides of the road on this.
He is not a fraud.
I feel that people have deified him over the years. Common practice in MA circles.
He has told me that he trained with Wang Zi Ping. I cannot ask Wang Zi Ping as he passed away many years ago.
I again state that you can learn a lot about Qi Gong from him.
Walking my circle,
Dale Dugas