I really want to buy into your premise, but I just don't see it, at least not on the scale that you're suggesting.
One thing to keep in mind is that the number of persuadable Witnesses has likely been on the decline since the widespread use of the internet in the late 90s, when we would expect most of them were reached.
You see evidence of that in this forum and others like it. I only caught a passing glimpse of the late 90s/early 00s ex-JW online community as I was still a JW, but it was incredibly more vibrant than what we see today. There were extensive debates about doctrine, complex manifestos being written, just a wealth of intellectually stimulating threads
Even in 2006 when I first visited this forum those days had largely disappeared. Now the online community is a shadow of what it once it once was, likely a reflection of the fact that the flood of those early JWs who had been reached by the internet and were persuaded to leave the JWs for intellectual reasons have gotten on with their lives and moved on.
That's not to say that the internet can't continue to be a force, particularly for those born-in JWs who start reaching the age of reason, but I'd expect the data to show a large exodus beggining around 1998, peaking around 2003, and steadily declining ever since.