Why do soccer players get to be "unlucky?"

Excerpt from:
http://acoachinglife.wordpress.com/2...to-be-unlucky/

You hear it at every soccer practice and every soccer game. A player scuffs a shot, misplays the ball out of bounds, misses a trap… and as the ball scoots off in the resulting unintended direction, a coach or a spectator or both yell out “unlucky.” But here’s the question: Is there any “unlucky” in soccer? Or is it more accurate, if less charitable, to yell “unskillful?”

I’ve wanted to write about this question ever since one of the instructors at my C license course posed it to the candidates. He extended the argument to all sports, but I don’t think I’ve ever heard “unlucky” shouted at another sporting event. No one yells “unlucky” when an outfielder drops a fly ball. No one yells “unlucky” when a basketball player blows a lay-up or a dunk. No one yells “unlucky” when a touchdown pass slips between a wide receivers hands. No one yells “unlucky” in any other sport. They might boo. They might say something like “you’ll get ‘em next time.” But no one says “unlucky.” So why are soccer players uniquely “unlucky?”