Yes and no, Nick.
If the ref saw the dive then Krasic was gonna get a yellow. Since he got away with it, then the federation will give him a more severe ban than a yellow in order not to encourage other players to try diving and get away with it.
It won't be a precedent of any sort. It happened before and I'll be really surprised if he won't get suspended. Perhaps only one match after we appeal the original ban (which is gonna be 2 matches most probably), but against Milan he's almost surely gonna be suspended and it won't have anything to do with the FIGC being anti-Juve.
But this is Italy, so lets hope that they'll pleasantly surprise us