How so, I didn't say anything about the content of the memo? Or you disagree that it did obvious harm to Google's policy on gender? We know that female employees received the memo and stated that it made them feel excluded, which did harm to the intent of the policy. That's not really debatable is it?
The phrasing implied that Damore willfully created that harm. It's a simpler explanation, at the time of authorship, that he did not expect the reaction it got. It seemed to be an attempt to explain his logic in an inoffensive way, in fact.