3.5 YPC isn't great. It isn't even average.
The good things about Moreno right now are that A) He isn't taking himself out of games anymore, now that his draft status obviously means nothing and B) He isn't fumbling the ball. Add in some consistent ball carries -- 30+ is high for any back -- and that's good enough for the playoffs. Other than that he's playing like his usual self. I don't quite understand the theatrics of some posters here.