When I was a Witness I was always under the impression that apostates were in some way organized, not lonely and isolated. The WT likes to give the "us versus them" mentality, and it suits their purposes better if they paint the situation as "their organization (political/religious/apostate) versus our organization."
In reality, apostates as a world-wide group are a hodge-podge of different personalities all with diverse, often conflicting, religious and philosophical ideas. Ex-witness boards, along with "apostafests", have almost nothing to do with "bringing down the WT" in any organized way. The term "free for all" comes to mind.
Bradley