Interesting that they don't refer to "members". Especially since they are a corporation. In the Australian Corporations Act, "member" is another word for shareholder. And shareholders have a say and a stake. And most organisations with members allow those members to have a say in how they are run. So not surprised if they are not members.
So what are members called now? Obviously not parishioners. Congregants? What is the word used by the WT for R&F witnesses?