The problem with sports betting is that it's not pure EV, it's a combination of intuition, subjective and EV calculations and what that promo doesn't say is that your intuition competes against the house's intuition. Just as in poker, which is also a combination of intuition and EV calculations, you compete against the intuition and calculations of the rival players, here you compete against houses that with computer programmes and with time are increasingly adjusting the odds better and better.

90% or more will continue to lose no matter what the article says. Even in an imaginary world where people learn how to win at sports betting thanks to the promo's advice, the bookies would have to close.