The thing is, they don't want change.They don't want to rock their boat of understanding so they just float along with what they learned from years before.
They are always crowing about how progressive their understanding is...about how Christendom still believes the same things but the WTS is keeping up with the chariot constantly moving.
Individually, however, the rank and file pays no attention, obviously. Or, they say innane things like, "Oh, I knew they'd change this. Now it is up to date, makes more sense, etc."
I remember when the 1995 change came-that the generation was the "contemporaries that don't believe" crap. I didn't understand it. I read the paragraphs in the WT several times. At the meeting where it was "parroted" in the WT study, I looked around at the people. No one batted an eye. It was like something from Orwell's 1984. Just the most important doctrine in JW land changed, and no one acted like it held any consequence. Business as usual. Inside I knew something was wrong, but held to the principle that "we must rely on Jehovah," and that I was the spiritually weak one, and especially the "Well, we are like the Israelites. We don't have to understand, just obey."
Wish I'd headed for the door at that time.