This is indeed MeeGo vanilla you could say, but Nokias Harmattan is a bit more than just UI.
It will include Nokia proprietary apps, and I believe the fear is that they won't be any better than the ones we have currently. If they aren't a lot of power users (such as ourselves) will probably want to use a vanilla version of MeeGo anyways, as I refuse to believe that the MeeGo developers will want reference apps that are less functional than the ones we have.