This is the fun of the NFL; all 32 go into the season with high hopes, all of them. The better teams, even higher hopes. So, while a Dallas fan is certainly happy to win, it also is just the first step to New Orleans AND they gotta play the defending champ Giants at least one more time. There's that and then the Giants, not happy about losing, have made it their business to get it done when it matters most; at the end of the season so, there's no panic there.
Dallas looked great last night because of the D improvements, especially in the secondary, last seasons weakest link. And the offense certainly showed they can be one of the very best, able to score enough points to overcome the usual Romo-Oh no per game. Man, they have got a stable of skill people!
It's not that they won. It's how they won; all around.