You didn't read it.
At no point did it even insinuate that women were less capable than men, what it seemed to be trying to do is note marginal statistical differences in choices by men and women and what we could do as an industry to be more accommodating to women without resorting to hiring quotas- which, he claims, may actually cause greater levels of imposter syndrome and tension amongst genders.
There was no part of the document that came close to refuting that women have a right to be in the industry. In fact. The document was the opposite, "how do we get women in tech in a non-discriminatory way?"