All games are important.
But division games count for more
There is added pressure normally to win your home games too.
So a home division game is way up there as far as helping get to the playoffs.
Including this week's game, here is the rank order of games by importance so far as they relate to Dallas going to the playoffs:
1) New York. NFC East, home game. Season opener
1) Washington. NFC East, home game
3) St Louis, NFC conference game. Home game
4) Denver, non conference . Home game
5) San Diego, non conference. Away game
5). Kansas City. Non conference. Away game
As far as the op goes, I'm not sure that a Dallas win would make this a two team race. Too early still for that. At this early stage of the season, it is a very important game though.