It proved that just like you can't have a football game that is just pass, pass all the time. You can't have a game that is nothing but run-run.
I love smash mouth football, but to watch the Colts basically control possession in the second half with nothing but running plays, wasn't necessarily boring, but just slow and uneventful. They didn't even try to pass down field.
To run out the clock towards the end of the game to preserve the win is one thing, but to run out an entire half?
Also, the Chiefs need to correct their run defense, or teams will just run to slow down the game and kill time, taking rhythm away from their offense and tiring their front line defense.