I guess the idea isn't to teach people how to be an awesome entrepreneur, but to point them in a good direction so they can earn the experience they need to be an awesome entrepreneur.
A friend of mine once said, "There are things in life that you can only learn through experience. There are also things that you should never learn through experience -- like how to pack a parachute. Knowing the difference between the two is key".
I just don't think statistically, it has any significant impact on whether you become successful or not. But sure it might save you from some beginner mistakes.