Sounds like it was by design, at least according to Daugherty at the Green Bay Press Gazzette. . He saw the same thing I did, House having, and being casual about contain responsibilities on his side, while Bush (I mistakenly said Hayward) played differently and correctly on the opposite side:
House was too casual on Seattle's fake field goal pass for a touchdown. He had outside contain at right end, but he turned the corner and stood. If he'd flared outside after a couple of steps, as Jarrett Bush did on the other side, he would have blown up the fake.
http://www.packersnews.com/story/spo...ired/22141019/