Yeah, it was a bad call, but there are a handful of bad calls in every game. The Celts earned that game.
Now, in some theoretical simulation where we replayed this season 100 times, would I expect a 14 game streak to happen consistently? No, probably not. But, for every excuse why our record is a fluke, there have been equal reasons why you can argue the Celts have had bad luck with injuries, scheduling, etc.