It seems that nearly every couple of months there is another little tweak - just enough to be noticeable for some of us. Because many JWs are busy trying to keep from falling asleep during KH meetings, they will probably not even notice the changes and just go with the flow. Then in a year or two, they'll all be asking each other: "When did that teaching change?"
Oh some of them notice Juan.
It's called "keeping up with Jehovah's chariot."