I think most would agree that this DE read option play has been a significant part of the offensive success lately. I am no expert, but my understanding from years past has always been that *nobody* in the NFL runs "the option" very much because pro defenses are trained to ignore the ball and kill the QB. Now Russell is pretty darned elusive and it seems he's been well trained not to risk serious contact. But I can't help but think if it were some other team having consistent success with that play against the Seahawks, I'd want someone the pop the QB hard.
Also, when RW does hand the ball off he always fakes running outside with it - which is part of the play's success. Honest question: is it not within the rules to nail the QB if he fakes running outside with the ball?
Generally speaking perhaps the advent of QB-protectionism in the rules is leading to increased use of QB option plays in general (Newton, RG3).
Also one last tidbit: As a CFL fan I have seen the Calgary Stampeders run that play with quite a bit with success over the past few years, far more than any other CFL (and I believe NFL) team. Seems like a long shot but I wonder if Brandon Browner might have anything to do with the Seahawks implementing it.