The NHL seems to have backed off on where it was at the beginning of the year where if you farted in the general direction of a goaltender a minute before he attempted to make a save they considered it interference.
In this case I looked at it on the NHL video a few times and I think Crosby hit the puck initially on the tip in front, after which he made definite contact with Elliot's glove interfering with his ability to make the save, I don't know if the fact that Crosby touched the puck first makes a difference or not in the matter though.
