Vewwy interesting...you never know...everybody responds to "seeds" in different ways. With most of us it was a variety of seeds and issues.
Mostly, it HAS to get personal before a cult member is moved to action, I know it was that way for me.
I liked the way you show the chronology of failed prophecy -- without ever really pointing it out! People may think, "...damn, there are whole generations that were fooled...am I one of those?" See? It just got vewwy personal.
Good for you.
O' and Good Luck !