I see what you're saying but there were much more to the clock management then that, including the idea of huddling up before the 2 minute warning, chatting and not really having a play already picked out. Or the number of runs selected. There was a ton of time on the clock for two scores and they had 3 time outs. If you're going to run the ball, then stop the clock with a TO. If you're going to throw down the middle of the field. Use a TO to kill the clock.
This isn't the first time Andy Reid's been criticized for poor clock management. If its not something they practice during the preseason and regular season, you cannot expect teams to be great at it during the playoffs, and I have to wonder if its something that Reid doesn't spend a lot of time one.