I'm used to reading inaccurate descriptions of Google and Googlers in the press, so I wasn't surprised by this from the article:

"... be usable as a single database for Google’s developers, who could care less about how a database or datastore is architected and implemented so long as it gets closer and closer to the SQL-based relational database that is the foundation of enterprise computing."

I don't think I've ever heard a less accurate description of Google engineers. The idea of implementing anything at Google scale on top of an enterprise-style SQL database would be vociferously shouted down by the vast majority of Googlers.

And the rest of the article is pretty much a mess without a discernible point.