The Steelers burned what could have been a costly timeout on 4th down in the 2nd half. There was no way they were going to go for it in that situation yet Ben hurried up the defense to try and draw off the Chiefs.
That's something maybe you can try and pull off when you're at home, but on the road and in that situation in a close game, there's no way you do that. The Chiefs defense saw that coming a mile away and there was no way they were going to jump. Consequently it costs a timeout.
Now, if you're going to quick snap it then get up there and snap it and try to make the play. In that situation though, it was too far to go for it and it didn't fool anybody.