Honestly don't think it makes a difference if they got a "feel good win" today or are going into the playoffs humbled, desperate and embarrassed.
The Dallas Cowboys culture is that of a bunch of entitled players living off of the success of Landry and Jimmy Johnson teams ages ago. The any press is good press and all advertising is good advertising ownership style is pervasive in Dallas. Thus when there is a modicum of success, the players are all left to feel entitled and have their head in the clouds as if they have accomplished a thing. That will never change until the Jones boys make it a different environment. Stay off the air. Stay out of the press. Make the HC the face and voice of the Dallas Cowboys. Give that HC free reign over personnel and who stays and goes in Dallas. That will stave off the ability to go above the coaches head and talk to ownership. Players will then be truly held accountable and subject to true repercussions.