Also, you are using an unreviewed document from Google not published in any conference to counter published papers with specific results, primarily the Cheng et al paper. Jeff Dean did like that paper, so he can take it up with the conference and convince them to unpublish it. If he can't, maybe he is wrong.
Perhaps, you are biased toward Google, but why do think we should trust a document that was neither peer-reviewed nor published at a conference?