I do not want this to develop into another discussion on "607 BCE date is wrong".
When the A-E section of "Aid to Bible Understanding" was published, I was able to show that the article on "Chronology" employed deceptive techniques when it cited its sources. Whenever I provided JWs the evidence in print, it was like water off a duck's back. "The brothers in Brooklyn have done all the research, write to them", they would tell me.
I soon recognised that the JWs followed the WTS because of who it claimed to be.
It became clear that another, stronger force existed--the impact of shunning with the loss of close friendships and with the impact on their family relationships.
One could only stand by with concern thinking of the impact of the cognitive dissonance and observing the regular changes requiring lock-step obedience. What was anathema one day became orthodoxy, only to become anathema once more
I now see a reason why the JWs I knew would look forward to changes, probably with the hope that their internal beliefs had become policy.
Today we see the same, with the WTS being deemed "celebrated scholars". The scenario has not changed.
I can only guess that those JWs who keep in contact with the WTS's "chronology guru" (RF) would be concerned at his personal opprobrium should any of his fans openly disavow him.