I saw this happen with a distant family member within the time frame of which you refer. Both born-in JWs. Two kids DFd. For years they "hard shunned" the kids. Then they saw the Canadian lawyer/elder testify before the Canadian Court that DFing ONLY affected "spiritual association" among one's family members.
They immediately saw WT speaking out of both sides of their mouth -- yes, WT was outright LYING about their stance on DFing -- OR IT WAS "NEW LIGHT". Their conclusion was that if WT didn't have the balls to take a stand before the Court, then they would no longer take the hard line against their DF kids.
Additionally, I believe many more JWs are reading "objectionable" material online. It is impossible to avoid on YouTube if you have ever searched for anything "JW". I have never seen the abundance of personal experiences that are posted there now. AND.....they are not all "crazy" people. This kind of thing has to be creating more and more doubts within the R&F.