to play devil's advocate here, since a lot of people are dismissing the seriousness of the loss......
the injury COULD be detrimental to the team. although the other day bbd claimed not to know his role, one major part of the role he needed to fill was to keep kg, sheed, and perk's minutes down during the regular season, when applicable. i think bbd's role will diminish during the post season, as the rotation will get shorter and he will be used as a situational player. keeping sheed, kg, and perk refreshed heading into the post season will help this club immensely and hopefully help to prevent risk of injury. the other thing to consider, it is his shooting hand, and if he is out for a while, it could effect his shot.
last potential impact.....conditioning. although the injury should not prevent him from staying in shape and doing cardio, his motivation could decrease and impact other areas of his life (ie- eating habits, exercise, etc)
if bbd is back by xmas, i agree that it isnt too much of a factor UNLESS perk, sheed, or kg suffer an injury.