~ There is still a free trial to see if the op is really good at it. I think the op isn't selling a kind of e-book or pdf but he clearly mentioned that he was a coach so I expect that the lesson that we will be getting are delivered in real time. This is a proof that no stealing is involved in here.
I personally don't think OP was aimed at stealing someone's money, but spending your time on some useless courses is what we don't need too, right? Then, also, the following can happen: you learn a technique, you win with it, and thinking it's working you pay for the courses, while in fact you were winning just because of luck, and the technique you've learned simply works like any other, it works until it doesn't.
Yes he don't have that intention which I know and if the buyers have any problem or are afraid then they can escrow the money so that when the buyers get what they want, the funds will be released to the owners which will look very good and helping each other. I think they should be many interested buyers that could be massaged the op on his offer.