normally I would say overreaction, and in reality it may just be, but this team really does need to beat a good team (barf - cant believe I consider Philly one of those). It needs to prove it can play with the top teams. Need to be done with the excuses. Would a loss be the end of our chances this year, no but it would surely dampen them greatly
A loss throws Dallas back to a 2 game deficit head to head and back to a tie in division games, with only 4 left to play.
We'd be back to hoping some other team beats the Eagles that weren't supposed to beat them, us winning out, etc.
As is usually the case, team health plays a huge part in playoff success. Just look at last night, Lawrence could easily have had his ankle snapped like Dak's, and they'd probably be out of playoff contenton. Pittsburgh was really coming on, then they lose Pickett. Hurts got his bell rung in their last game, he came back, but just ask Roger or Troy - those can become chronic very quickly and Hurts could miss a couple of games still.
Seasons's end is rapidly approaching, the playoff picture will begin to clear up very soon...