@degusta Whether these leaders publicly eat their own dogfood or not is a matter of rhetorics and strategy. If that were your thesis and narrative, we would be having a much more interesting conversation.
However, you didn't entitle your article, "Google Management Doesn't Care About Google+" You said, "Google Management Doesn't Use Google+". The former expresses your perception of Google strategy backed by the data you've collected. The latter is merely link bait.
Actually, I agree that might have been a better title - would have avoided some of the controversy while making the same point. (And, fwiw, I don't have any ads or make any money off my blog, nor did I really think the post would catch on to this extent.)
However, you didn't entitle your article, "Google Management Doesn't Care About Google+" You said, "Google Management Doesn't Use Google+". The former expresses your perception of Google strategy backed by the data you've collected. The latter is merely link bait.
I do congratulate you. The link bait worked.