VJ, he said the primary reason for missin the worlds was "health." The fact that he might need to shoulder more of the load with Booza, Korver, and probably Memo gone was an additional reason for not wanting to risk his health, but it has been an issue since the season ended, and his participation in the games has been questionable since then.
If he did'nt think he would have to shoulder the extra load he would have given the Worlds a shot, wrist injury or not. He was actually the last one amongst the stars to pull out of the Worlds.And he actually did say that he was frustrated.