It's pretty clear that Dom's approach revolves around this, from the Quality Stats link in Woody's thread... He's said as much before.

3. Owning the Quarterback Battle

As you've likely heard from us, efficiency in the passing game on both sides of the football gives you best chance to win in this league. That's why we call Passer Rating Differential the "Mother of All Stats." However, if you want a spin off to this story, look at Real Quarterback Rating Differential. This stat applies better to today's discussion particularly because of how Russell Wilson is running the football under center. RQRD adjusts the PRD to sacks and rushing totals from quarterbacks to give a more complete picture.

Don't be surprised that these four teams lead the league in RQRD. This includes four of the top five offenses in this area (the Dallas Cowboys rank fourth in REALQBR). The Green Bay Packers led the league with a 27.18 RQRD, followed by the Denver Broncos with a 18.77 RQRD.

The New England Patriots and Seattle Seahawks rank third and fourth in RQRD, respectively. However, they are only two teams to rank the in the top 9 on both sides of the football (the Indianapolis Colts are quite close, ranking 9th and 10th on offense and defense, respectively).
Defenses obviously don't operate in a vacuum. Having (by far) the most efficient QB in history tends to make his defensive approach more conservative.