"Golden Compass" review withdrawn

I'm fairly certain that this post wasn't the cause of the USCCB withdrawal of its favorable "Golden Compass" review.

In any case, the review has been withdrawn.

If you read the report of the withdrawn review, you can almost sense the snit, as in:

Since CNS is a distributor of media reviews of the OFB, it must respect the office's withdrawal of its review. Effective December 10, the review of "The Golden Compass" will not be available on the CNS Web site. It will not be included in subsequent listings of the USCCB film reviews and classifications.

A few questions come to mind:

1.) Why didn't the USCCB change the Office of Film and Broadcasting review instead of merely "withdrawing" it?

2.) Why, come to think of it, is there a need for the Office of Film and Broadcasting within the USCCB anyway?

3.) Which begs the question: is there really a need for the USCCB in the first place? (A friend who used to work for the organization once explained to me why the USCCB was absolutely necessary but I've forgotten his reasons and he doesn't work there anymore.)