Does it really hurt Lebron legacy that he went Miami even if he won multiple championships and Finals MVP?

Lebron is a jumpshot away from being the greatest to play the game. I don't support his decision to join an all-star team, but that aside,he's a triple-double waiting to happen, Jordan was'nt. And should he learn to shoot from the perimeter as well as Kobe does he will instantly become the Greatest NBA player ever.