My first thought will be "what did the other wildcard hopefuls do?"
It's not that unusual for a team that got totally embarrassed 1 week to come back and play inspired football the next week...it's called being backed into a corner, trying to prove you don't suck, trying to show you're not a coward, refusing to quit and lie down. I would not be at all surprised to see a team so totally humiliated and @$$ whipped last week come out and eek out a victory this week.
That would be great, but it would also only confirm that there's a serious problem in Dallas when the coaches and players can do it for pride, manhood, and necessity one week, but couldn't muster any freakin' moxy the week before playing their most hated rival of all time for a playoff birth and possible division crown.