Hits mean nothing imo, at least not when it comes to defensive play. You can be physical in the corners and never make an actual hit ( hits are a subjective stat anyways based on where you are playing ).
The special teams play is not really up to him, its not like he is sitting there begging them not to play him on special teams. As said, despite his flaws, Josi eats most of the PP time and Barrie tends to get what is left. PK wise I don't see that as his fault either, the coach is making the decision on who to put out there and considering how bad our PK has been this season, maybe the coach making those decisions hasn't been that good.
The turnovers I get, but watching the games it certainly doesn't feel like his are in any greater quantity than anyone else, and considering he only plays 1 game out of every 3 or 4 how sharp can you really expect him to be?
I kind of feel like most of the arguments presented either don't matter ( hits ), are out of his hands ( PK/PP time ), or he is more or less being asked to be as sharp as players that are seeing the ice every game.
I've watched nearly every game, fancy stats or anything else you want to spit out can't get past the fact Fabbro is at least better than two of the Dmen on the ice, Barrie and Schenn.