This document is nothing more than an embarrassment for Oracle. "One size DOES fit all - and that size is ORACLE!" Really? Even the most entrenched, old school DBA stuck in the bowels of some drab insurance company in Indiana wouldn't buy that. I'm not a NoSQL guy by any means (check my profile) but the desperation in this doc is way more palpable than a guy like Ellison would approve of.
You truly underestimate the zealotry and kool-aid drinking capacity of the average Oracle DBA. When your entire career is based on the training and certifications you've received from a single company, every database solution magically becomes Oracle...
(Previous Oracle Appreciation Concert performers have included Elton John, Billy Joel, Aerosmith, Roger Daltry, Don Henley, the Black Eyed Peas, Devo, and Joan Jett.)