Not only does it take the bat out of the kid's hands and may rob him of his moment, it also takes away the challenge from the pitcher to strike out this feared hitter and rob him of his moment too.
In Little League, let them hit. As much as IBB's are part of the game, you want to teach these kids to hit, be aggressive and attack the ball. Little leaguers are just learning that. In Cooperstown, having been there with my son who played in it, and seeing some of these teams that compete, it's no surprise you'll see IBBs. Some of these teams cough up a lot of loot to play in this tournament and some teams fly in pitchers just for the playoff rounds. For some of those organizations, winning the CDP tournament is life and death.