It would be great if Gilbert was really some inefficient chucker, cause it would lend credence to the idea that he's not that good. But he is efficient, he has a very nice point per shot and TS%. And infact, post All-Star break he did around 31ppg on 47% fg, 41% 3-pt fg.
As far as being a chucker goes, he takes the same amount of shot attempts per 48 minutes as Dwayne Wade. And Gilbert doesn't dominate the ball anywhere near as much as Iverson or Kobe. He doesn't have the same freedom, because if Jamison and Butler don't get their 15 shots each than it's a problem.