We didn't win, though, and three interceptions (in the passing game, obviously) was the reason why. Here are the game situations for those interceptions:
- 2nd and 9 at the 50, Dallas leading 13-10 with 11:19 to go in the 3rd quarter. The interception was returned for a touchdown. We don't know what Dallas would have done without the interception, but at least a field goal seems likely. This was very likely a 10-point swing in the game.
- 2nd and 7 at the NY 40, Dallas trailing 17-13 with 7:54 to go in the 3rd quarter. With Dallas essentially in field goal range already, this probably cost the Cowboys three points.
- 1st and 15 at the NY 39, Dallas trailing 20-13 on the first play of the 4th quarter. Again, this likely cost Dallas three points.
Let's be conservative and say that Dallas would not have moved into field goal range on the interception 1 drive and that they would have tried two 50+ yard field goals on the other two interception drives, making one of the two. Even if that is all Dallas gets out of it, it's still a 10-point swing in a game the Cowboys lost by seven points.
So yes, I would say the interceptions were a massive factor in losing that game. They also explain why the Cowboys passed less effectively than the Giants.