To loosely quote Richard Dawkins from the god delusion, the purpose of a theory is to formally describe something in order to question it. Questioning the methodology of a study is to derive understanding, rather than belief which neither need theories nor want questions.
The result did run counter to anecdotal experiences described by women, as is mentioned in the second section. The female account did not see more sexual or sexualized comments, out of the whole 339 tests only one was definitely address to him and a second event that the author is uncertain about. As describe in depth by the author, outliners like those are of questionable value. That is very far from the anecdotal experiences usually described about competitive online team games.
The questioning/challenging of abilities was the other finding, which the author speculate is derived from when a player is underperforming and get frustrated they lash out at team members who is overperforming. This is where a gender difference is found and it is an excellent starting point for further studies. For example it would make for an interesting path to compare studies that look at game theory experiments where player punish generosity, and in cases punish generosity more than defection.
I would also like to see a more in depth study on exactly what underperforming players do when they get frustrated. What is the common outlets and how they differ depending on circumstances. The author did mention that they were more often the overperfoming player when he used the female account so its possible the methodology in this study actually did influenced the result, which the author says in the article.
I found this study interesting but it did not change my view about the issue. I have always though that the difference in online game experience comes from the method people use when trying to insult someone else, rather than the rate in which people do it. If the only clue someone has is the name then that is what people will use in order to guess what method create the best insult, which results in primarily a gender difference.