One thing I do not get is why was the (original) memo written in "Google's voice" rather than stated as a personal point of view. Who, except maybe Sundar Pichai and the head of HR, has a right to talk for the company as a whole?
I don't think it was written in Google's voice. It was written in the voice of a young likely somewhat autistic engineer talking to his colleagues on an message board designed for discussing the topic of his memo. Then the media/Pichai sacrificed him on the alter of political correctness/profit.