I can't remember - how did Watt perform in that game?
Hmm, playing through a fairly severe groin injury really limiting his explosiveness and effectiveness as a pass rusher, which he had to get surgery to have it heal, still playing off from a hand injury where he had to wear a cast from Week 14, eventually getting knocked out by having his head shoved to the ground by the classless imbecile Eric Fisher, and on top of that getting zero help because the offense never did their job to help the defense rest to begin with...
I dunno... How do you expect to play with all those factors?