Let me add on to the too much argument, but a bit tangentially. I copied a wolf build over out of curiosity just to see... and yep.. If you are a wolf build with a maul and have the feats to do so, you can take the three THF feats along with the 3 Natural Fighting feats to get 3x ability modifier on your attacks.
GUURK. Is this WAI? I would have to assume not but intended or not, it is a monster DPS boost to that specific wolf build. I suggest that at the very least you make Natural Fighting / THF exclusive based on whichever you pick up first.