I'd have to say that Miami's defense played relatively well yesterday. One TD was scored after a great run, when the game was basically over. One TD was scored on the pick 6. So, essentially, Miami held the Ravens to 13 points. One TD after a turnover that left the Ravens with a short field, and two field goals.
That's not a bad effort at all.
They mostly stuffed the run allowing just over 100 yards - except for the long run resulting in the TD [which added another 48 yards to the total], and they held Flacco to 9 completions in 23 attempts for 135 yards.
The odd thing is that the Dolphins faced essentially the same defense they faced 7 years ago in their last playoff appearance. So, in this case, experience overwhelmed youthful exuberance. And that was the difference in the game.