They played a good game, they had a chance to win that game. But it's all about making plays when they need to be made.
The TE for Miami blew his assignment( 3rd and goal at the Pats 9 yard line) and Harrison came in clean, ball loose, chance denied. If the Dolphins make that play, they are in great shape to win the ballgame, but instead the Pats defense makes the play and the Pats get the ball. If there was one time during the season as a Dolphin NOT to turn the ball over, that was it.
Ya know, even if the Pats lose in the first round, this has been a great season to be a Pats fan. There were some who predicted them to finish last in the division. They lost their top linebacker for the season( Roosevelt Colvin) and had a number of other injuries to the defense. But they have won and made some big plays.