I don't think he is epeen waving (where e this time is education).

Sometimes with technologies going through the Gartner Hype Cycle people choose the incorrect one, because of the buzz, the glamour around it.

NoSQL is most definately in vouge, quite rightly, too many people often use heavy RBDMS when they are not required.

But too many people perhaps are too quick to dismiss the regular database without actually understanding it.

Any suggestion to avoid hype of technology, question your use cases fully is in my mind a good suggestion.