If Senator Clinton is opposed to this, that that means this is NOT a ploy/tactic of the DNC to stack the deck or anything.
Sounds like some Hispanic and black lobby groups are flexing their newfound muscle and are letting reps know about it. When Latinos get fired up about something, they can organize huge groups of people overnight it's amazing. They want a bigger stake in shaping the nomination adding another "minority" state in there. If you think about it, the Iowa/NH thing has been such a standard for so long, it really is kinda a way to shake things up, and its difficult to oppose cause it's just a poll and not a law or bill or something.
If they want muscle, vote Replican a couple of cycles.