Don Cameron's book needs to be viewed as a bunker buster bomb that was a tremendous success in pushing the GB off the dime.
I have observed that any movement from an entrenched position comes from outside critics who hit a bullseye with trenchant targeting of weak spots in the JW mythos.
When the picture you've carefully hung over the mantle is crooked and the parlor is filled with true believers it only takes one truth teller to point
to the wonky imprecision to get an "adjustment" going full throttle.
We can theorize that the amount of time it takes to create tergiversation in the Watchtower leadership is about 3 to 4 years.
Congratulations, Don!