Well, it seems like the "rogue" organization in question takes the high road on public forums and attacks on the sly. Their website is full of subtle and not so subtle attacks on the AAA style of instruction and Aikido. The least of which is that it is "watered down." I think that a covert attempt to cause derision to create a situation where the leader could take over an organization by force is attack enough.
In regards to the rank question, most people don't question the leader's technical skill but do question his character and motives. Plus many have witnessed incidents where weaknesses in his character have influenced his technique, causing very unsafe situations for uke.
This is a no win situation. Perhaps we should all let it go and let our practice and actions speak for our characters. In time, people will figure it out for themselves.