First of all the ARC is not a court because it does not have the same due process of a court, no defense, cross examination of witnesses or evidence being presented by the defense. The witnesses are put under oath and lying does carry the pains and penalty of perjury.
Second, it is that Watchtower says that they don't have control over CCJW or of congregations in the US since 2001. It is important that this is their argument. But that argument has worked in another state in a different type of tort case over a wrongful death lawsuit over a slip and fall.