I believe that a coup is one of the Governing Body's worst nightmares.
Imagine a splinter group led by anointed ones that draw off enough of a following to cause confusion about who is directing the organization.
This may be one of the reasons the Governing Body removed the special status of the anointed and placed it on an organizational arrangement that they just happen to occupy.
The irony is that this action is a coup in itself. By declaring themselves leaders in complete control of the organization, they have created a rival group composed of those who disagree. These people have no obligation to follow these newly self appointed leaders. They have every right to stick to the previous arrangement and understanding.
I'm no lawyer, but I don't believe that any court in the United States would be willing to interfere in internal religious matters to determine which group is legitimate. For a person to side with one group would indicate that they are not under the authority of the other. A court might determine ownership of property, but would probably be unwilling to arbitrate theological issues.
What is needed is for the group that disagrees with the Governing Body's self designation as the Faithful And Discreet Slave to have a face and some level of organization. These would probably be disfellowshipped, if they aren't already, but they could also formally disfellowship the Governing Body. I don't believe there would be any legal basis for deciding which disfellowshipping would be legitimate.
Even one anointed person could be enough, although a group might be better. If that group has a website with some spiritual information, they could be said to be dispensing spiritual food at the proper time. The could have a claim on being the Faithful and Discreet Slave (or a part of it) that would be unlikely to be challenged by any court.
The Governing Body could face some serious legal challenges if they ever tried to punish those who never joined their coup. A religion doesn't have the right to punish nonmembers. The Mormons have gotten into trouble for this very thing, so there is a precedent.
There is one very useful thing that this rival group could accomplish. They could process letters of disassociation. I would recommend that they keep the identities of those who disassociate private, but they could send them a letter saying that the request has been approved. This letter could be used to threaten legal action against any elders who represent the Governing Body and try to punish them in any way, including an announcement that is intended to get the congregation to shun them.
I welcome your thoughts. I never claimed to be of the anointed, but I would be willing to offer some assistance to a group that wishes to challenge the Governing Body.