As for the official/fan label... who cares? It's a label, and you're arguing over minutiae just to be contradictory. It's almost as bad as all the ego waving that goes on about what is and isn't canon.
OGAM was an entertaining, quality product that fits into the Trek verse nicely. Even the cheesy low budget graphics had a nice retro scifi feeling to them. No telling what kind of work this is going to be, but I'd say that teaser trailer is just that, a teaser. They probably have a script and a story concept by now, but being they're still announcing actors and cast I don't think they've started shooting. So this one could be awhile, but I'm looking forward to it.