I think most organizations would prepare something ahead of time, even if it were just something like, "We disagree with the decision and are considering our options." However, I don't think they even want to admit it's true on one of their official websites. They know that many Jehovah's Witnesses won't believe it unless they confirm it.
The problem is that this is far too big to ignore. Their silence will be seen as an indication of guilt by many.