Lebron is the same player either way, win or lose that game. However, when looking at his overall legacy, the 2011 series against Dallas will always be a bad mark. It was great that they got to the Finals, but Lebron played at such a worse level than his career numbers. It is one of the main reasons that Jordan will always be ahead of him (another big one is Jordan's shooting percentage is better). It may be unfair to place such great importance on a few games, but Lebron's individual performance in that series was horrific.