Yes, that would be a touchback. What the article is stating is that if the defensive player picks up the ball in the Endzone goes into the field of play, then retreats back into the end zone and his tackled, that is considered a safety.
Yes, peyton's worst games were in the playoffs. Not just against the cheaters, and Steelers but the chargers dominated us in playoffs too.
However, if anyone really thinks the Patriots successes were legitimate that's pure idiocracy.