I think that technical standards could help grow the NoSQL market. But somehow, I don't think that's what Oracle has in mind. According to a report by The Register's Jack Clark, normally a reliable source, "insiders, speaking on condition of anonymity, say relational database expert Oracle is trying to form a body dedicated to NoSQL databases, and is seeking participation from NoSQL startups."
Typically, large vendors use standards bodies slow the pace of change. I remember, for example, when JBoss was pushing for JPA and EJB3 to be standardized, a larger vendor dragged its feet while making acquisitions to compete in that space. With NoSQL databases, my guess is that Oracle wants to add barriers to entry and slow things down as much as possible.