Don't know anything about either team, but, as a coach, I probably wouldn't have taken a knee either. I would have put in my back-ups and let them run some plays......no passes, no tricks.....just run the ball and let them play in a playoff game. If the shoe was on the other foot, and I'm losing.....I wouldn't mind if the other team was doing that either (heck....it's happened before, and it didn't bother me a bit).
Although, if the game clock is going to run out before the play clock....I wouldn't run another play....just let it run out. In other words, if I'm Oakwood and we run that play with 27 seconds left and we get tackled.....that would have been the last play of the game.