"I had never thought of the underage aspect before!
Does all of Christendom serve grape juice like the Southern Baptist?"
Obviously, someone at Watchtower is accomplished at spin. The Generation Not Passing Away Until ALL These Things Are Accomplished doctrine has been a huge motivator for JWs. The embarrassment of years since 1914 HAD to be addressed in some way. The '95 explanation of the "generation" was confusing and not very well thought out. The '95 explanation eliminated the time element, losing punch as an urgency stimulator.
This new understanding of the generation puts us squarely in the middle of the last days. Perhaps in 100 years the "king of the north" will hail from Mars.