Seems that the point was that it's especially hard for women to get diagnosed and receive proper support for it. Not that it isn't also difficult for men. Girls and boys are socialized differently, and boys with autism are more likely to behave in outwardly disruptive ways, while girls are more likely to appear shy and anxious. Teachers and parents are more likely to bring up disruptive behavior to a doctor than just shyness and general social ineptitude.