I don't believe this fear involves "the truth." The fear is that a true thing (there are cognitive differences between men and women) will be used to bolster a lie (men and women should be excluded from varying industries based on reductive readings of physical generalizations). This is something that has happened repeatedly throughout history and along many dimensions; it's not an unfounded fear.

That you seem to think "something" should be done at all in response to this study only validates the fear.

Oh jeez... the "something" was referring to doing the actual research, not to acting on it (which I would be against, anyway)