I wouldn't say he was "terrible."
I've seen worse games for sure... and a couple of them the first 5 games of this season
He threw one bad pick. One overthrow that was tipped into a pick... that's like half his fault IMO. He also threw some passes that left me scratching my head... I believe there was a throwaway after dodging Wilson where he had more time to let something develop, but at least he didn't take a sack.
But he made some great throws. That play to Witten obviously sticks out on the last drive. He also made some plays with his feet buying time as usual... now that I mention it, there was a nother big play to Witten early on where he avoided a sack and made the play.
But I completely agree on the sentiment that Romo gutted out a win when he didn't play his best game. Games like that happen to everyone... where a QB sets himself apart is how he pulls his team out of a bad performance.