Sad to say , this doesn't surprise me at all. I was speaking to a long standing elder recently who still thought the generation referred to the wicked ones. And this guy gives talks at district conventions. He accused me of spouting apostate ideas , running ahead of the society , when I told him it referred to the anointed. I gave him the references & he later admitted that this was all news to him. "I just leave all this to the faithful slave - they have our best interests at heart" was his view.
Seriously , most JWs really aren't interested in anything "deep". As a project , ask a JW who has been to the convention and is spouting about how wonderful it was to explain the "new thought" on the toes , as per the invitation that they all distributed. All you will usually get is a blank stare. Most of the scholarly JWs have long since left the building , either died or left. The game is now to dumb down big time - aim for the lowest common denominator.
I couldn't help but notice the 5 or 6 ministry pictures in the latest Watchtower - all of them have JWs reading out of and offering brochures or books. Only one person even has a bible in their hand (and that is a passive 2nd witness who is following along.) Look at the latest Watchtower article on entertainment , with the helpful boxes with big ticks in them (What..tick.Who...Tick) Look at the main release at the convention - a painfully simplified version of the Enjoy Life brochure that would embarrass an 8 year old with an even more painfully worded "Simplified English" version.
The focus is on the 2nd / 3rd /4th generation JW whose whole family is in the truth and just gets baptised young , marries young & just gets swept along by the momentum and on the often poorly educated 1st world immigrants and masses of poor 3rd world people in Latin & South America & Africa.