Two things.
1) If Dak really said to himself "I'm a football" on that run that concerns me.
2) What good does it do to play Romo? Um, how about it prevents Romo from having to return to the field in a playoff game? Who can't see the logic in if he has to play in the playoffs it might be best to let him play a little before you get there? You might not want to work out the rust in a win or go home situation.