The issue with the Cowboys was all too present during that game. Yes, they won, but they showed exactly why they lose when it comes to playing really good teams especially during the playoffs:
Dumb penalties: They are as good as the Miners in this category. You cannot do this against good teams or in the playoffs. This never seems to get fixed year after year.
Interceptions: At the worst times, Dak seems to throw 1 or 2. His fumbling does not help either. Yes, he will get a ton of yards and throw some great throws, but again we are talking about really good teams and in the playoffs.
Red Zone Efficiency: They were better in this game than most. But they are still 22nd in the league
This year, the running game is going to be our end. Dak has to throw too much because it is not present. It was decently present in this game due to injuries on the Steelers side, yet they are still dead last in this stat.
The opposite is that the run defense is still weak. Yes, they had a good game against the Steelers, but that was due to the injuries on the Steelers side as 2 of their RBs were out.
I do not want to sound like a downer, but this is what will be present in the big games against playoff teams. One game does not change these glaring weaknesses that get you knocked out early in the playoffs.