^ I don't have issue with offering free seminars at all. I think it is unscrupulous to get money out of students and their families by undermining their confidence and convincing them that they need skills that they really don't need, but that doesn't make it a 'scam'. It definitely lowers my opinion of what he is offering - if it's so great then you really don't need scare tactics and exaggeration.
I remember when I was in grade 1, some company gave us a free in-home seminar on maths education. I had to do a bunch of equations and I got one wrong (my parents think that it was a trick question, although I'm pretty sure it was just a silly mistake because the questions were so easy). The person trying to sell the product said that because of that one mistake, my ability at maths compared to state averages would diminish every year. My parents did not buy the maths thing. I have no idea how you can prove something so silly like that, and I carried on with maths until year 12 and did relatively quite well. For me, that is closer to a scam - flagrant lies in the form of speculation.