Regardless, the only way to know if it was a statistically fair setup is to have: 1) the rankings of all playings in the tournament, and 2) the algorithm used to match players.
If 2) matches players of similar ratings against eachother, and she is more similar in rating to women than men, then I don't see what the fuss is all about.
If 2) matches players of similar ratings against eachother, and she is more similar in rating to women than men, then I don't see what the fuss is all about.