Hot take:
Everyone says McD has been "more aggressive" when, in reality, he was blitzing at a MUCH higher rate earlier in the year, to mixed results (looking at Pats game and Denver game in particular).
I think moreso, McD has had a much better feel for when to simulate pressure and when to actually bring it, and what we are seeing is a lower true blitz rate, but a much better defensive result overall. And that's been pretty consistent since the bye.