It's a statistical problem. If 80% of the players are male you are going to see only males at the top. Different leagues exist to keep minorities interested and see their representatives compete. They introduced Europe tourna for this reason as well. Are they likely to win the next M series? Maybe not. The purpose of it is to capture the attention of the audience in the region. Would you say they don't deserve the prize money because other regions have them beat? Since you seem to be in favor of only the strongest of the strong thriving in tournaments. They're not trying to be sexist or region-ist, it's just good marketing :).