Road teams almost never win these games... it's not an excuse, it's a fact. The Cowboys need to put themselves in better situations to not have to depend on winning them. While the game itself is very playoff like and I don't have a problem with people counting it as an elimination game, in fact it is not a playoff game, it's a regular season game. And the Cowboys did not win enough of them.
The Cowboys had a 5 game in 7 home stretch that most teams would kill for... plus, they had a home game before the Thanksgiving game, another advantage. They are never, ever going to break through if they have to beat a superior division rival on the road in week 17 that needs to win just as bad as they do. Never.