Regardless on your opinions of the memo, this article nails it right on the head; Gizmodo and other major news outlets handled this very irresponsibly, posting their version that had no citations, and leading the reader, even at the very beginning, into forming the opinion that this was simply a guy being "anti-diversity". Whatever your thoughts on the subject are, it needs to be pointed out that this type of journal…
The author feels comfortable making the claim women are biologically more neurotic, in a professional setting, no less. His "citation" for this fact is Wikipedia. This is unimaginative sexist bullshit that everyone has heard before. That people feel the impulse to defend this is disgusting.
Whatever innate differences there are between men and women are small and nowhere near as big a factor in the gender-ratio as say, arrogant weirdos sending credos to their entire company declaring women unfit to work in their industry.