It's sad we cannot have a post on an interesting topic not spoiled by the gender war anymore. Moreover this remark is totally stupid: women are as much likely to formulate a biased opinion than men.
Test, everyone 8s biased by their own experiences, but those biases are very _useful_, especially when coupled with the biases of those who has a rather different background. They allow others to see ideas they wouldn't have thought of leading to true synergy.
That's the point being made: not that another group of researchers would have been better, but that a diverse group would be preferred to a not diverse one.
I'd totally buy that diversity was a problem because "all the people who looked at this were from a few schools studying the same degree, and came up in the same academic circles and so had the same idea.". But the fact that the people studying the issue had similar genitals seems irrelevant.
FTFY. Coming from a progressive socialist who doesn't like to stick his head in the sand
The point isn't that the researchers were biased, the point is that there was a monoculture of bias.