Well IMO, I think the Lakers finally collapsed there at the end of the 3rd quarter (parker's wide open layup after Kobe's 3). They have played A LOT of games the last 4 seasons, plus because of their poor start this year they were always running uphill. It finally got to them, because it was pretty obvious that they were running on fumes. Who knows this might have happened to Michael and company if he didn't 'retire' both times. With the playoffs being as long as they are (not to mention how stacked the Western Conference is), it may be just to much energy to win that many in a row.
This will ultimately be good for the Lakers. This will give Mitch the ability to 'blow up the team' and bring in some new blood. Also, it will give the guys that are still on the team the lesson that they can't just turn it on when they want to. Hopefully Shaq will realize that the reason he continues to get knick-knack injuries is because he completely lets himself go in the offseason and then tries to get healthy and fit during the regular season. The Lakers will be back, it is just too hard to believe that this is the "End of the Dynasty", as many are trying to say.