He then reworked the doc a bit to be less overtly offensive (the published version is one of these later ones), still got shot down in a friendly way by the sympathetic part of the Google population for bullshit reasoning. Eventually it got wider circulation - not sure by whom, but he certainly didn't object to that.
At some point, when managers and friendly inclined folks tell you to shut up at work, you do. If you decide to pursue the topic further, don't whine when people disassociate themselves from you - not for the content of your speech, but for your conduct and the disruption that comes with it.