that article was the one that caused so many of my peers to really look hard in the mirror and finally turn in their paperwork to get out. It was the Oct 01 issue but was on newsstands in August and I know more than a few people that said "screw this - this isn't how I'm spending my next 15 years" and they left.
How many got out before 9-11 or tried to come back after 9-11 I don't know, but I do know that reading that article put in black-and-white what many had felt for a while, and they didn't want to feel that way any more.