Honestly, the defender never turned back and didn't allow Smith to get to the ball... so yes it usually is a penalty. But we should never have been in that position in the first place. That's just one bad call (non-call). Can't blame the whole game on just that one play. The defense didn't play great, but gave the offense a chance to win it. First and 10... dropped pass. Second and 10... Penalty. Third and 15... incomplete screen. Punt.