[Stupulous]

Even if one sex was 10x as likely as the other to produce good research, it is still sexist bias to judge research on the basis of the author's sex. Fairness and meritocracy mean everyone gets a chance; no one should be stopped from succeeding because they belong to a low-performing group.

I think it's safe to say that this study can be treated as an anecdote because we don't know the effect size or exact methodology and it was never peer-reviewed. And I'd agree with your point if we were talking about the Nobel prize study, which evaluates people as individuals. But arguing that 'real bias' is bias that doesn't come from empirical evidence doesn't make a whole lot of sense- all bias comes from empirical evidence of varying quality.