No, the use of English in politics (which this is) is pretty consistent, actually, in my experience. If he wanted to have a discussion, point at a policy and suggest an alternative rather than falling back on "merit is good, women are terrible engineers".
Replacing discriminatory hiring with paid apprenticeships and other education for groups the organisation is lacking in, would be a great example. Men can still get into Google because there's more of them in the pool. They're never discriminated against for a job, since the apprenticeship pool is separate from the job pool. Google gets a more-qualified, more-diverse workplace with more control over its training program. A win for everybody.
Secondly, I find it perfectly valid to discuss the very foundation of the policies (instead of discussing individual policies).
FWIW this does not mean I agree with the memo. But I think the immediate calls for getting the guy fired (and firing him) are damaging for the discussion.
In any case, screaming "WE'RE NOT EVEN DISCUSSING THAT!" and calling for getting the person fired is hardly a proper response. What I'd like to see is a fact-based response to the memo, showing numbers/reasoning for the individual policies, etc.
My main take away is you really can't openly discuss this topic (not just in Google), which was one of the points. Ironic.