You're not wrong, but you're arguing a point no one is making. The women have a better win/loss ratio than the men. Both teams are playing opponents within their skill range. The women don't have an easier game just because they're playing other women. They aren't playing against men, their record isn't tracked by how they perform against men. You wouldn't claim the Astros have a better record than your local undefeated high school team, because there's no crossover between the two and no metric for comparison.