The slip could have been on purpose because he knew he was being recorded. Nonetheless if the transcriber is using their imagination that would mean it's a premeditated hoax on their part. I don't see much motive for that other than general mischief. There are more ingenus or imaginative ways of discrediting the Watchtower for the sake of it. What's plausible to me is an elder at his wits end. The "slip" could have been a shout out to the people who created and circulated that term which is all too fitting. Only the BORG would sell out their drones. It's blatantly inhuman.
The Watchtower works very much like the fictional Borg from Star Trek the Next Generation. Take for example their efforts to schmooze with world leaders of countries that they have yet to penetrate with their "good news." Once a country lets them in they will start their extremely sophisticated assimilation process.
And just like the Borg process, it stays with people who were once a drone and were set free from the collective. For those characters it's a life process of reintegrating not only with society, but simply the idea that you don't just have a designation, but a personal name and a real history. It could be said that the original motivations for the Borg of Star Trek could very well be cults like the Watchtower.
A lot of people do not leave because they don't believe it's worth it. The Watchtower has it setup that way. That's part of the hook and it's to large and rusty for some people to pull out themselves. So they just wait for death to come all the while giving the Watchtower their time, resources and money. When you get mugged in an alleyway it's best to just give them your wallet and be as cordial as possible for fear of enraging an unstable mind and losing your life for a couple of currency notes. Such is with the Watchtower and many people on the inside. They just don't really understand what's happening.
If this transcription is a hoax then it still doesn't discount the fact that there are elder's out there that stand up to the Watchtower. Someone has to bare the brunt of the bully in the beginning so that public awareness can be rasied and change becomes possible through the people themselves.
-Sab