Let's not forget the fact that Lebron played with one of the most stacked teams the NBA has ever seen in the past 10 years. A team that was assembled with a lot of questionable salary cap issues to try and create a new legacy team like Michael Jordan Chicago Bulls.
The Spurs are a legitimate great team but remember how they were really only able to beat the Lakers once for the championship back during the Shaq/Kobe era? Both teams were in their prime too.
Now, consider this..if Lebron is so great and in his prime now and playing along beside some of the NBA's best why did he get so completely clobbered by an aging Spurs team?