Who has a better run game, Buffalo or New England? Taken in a vacuum, Buffalo. As a compliment to the passing game, probably New England, but Buffalo has much MUCH better receivers. So, I'd expect the offense (minus the heat and humidity) to perform much better than New England's did. Period. We're also at home. I don't know on what planet, based on the (admittedly small) sample set we have, the edge would go to Miami's defense over our offense.
On the flip side, Miami ran the ball at will against New England. This should come as no surprise since (a) the run-stuffing NT they've relied on for a decade (Wilfork) is about three years past his prime and has entered the nosedive portion of his career which was always inevitable. But more importantly (b) their best run-stuffing LB...IS NOW A BUFFALO BILL.
So, to me, it makes NO SENSE to say that the Miami offense is to be feared because they ran with success against New England last week.
Credibility, meet the open window.