I actually thought about this while watching the movie, that idea of connecting them wasn't fully realized. When the movie finally brought them together again I thought they would have some sort of simultaneous epiphany and resolve the conflict. As it is we just got something weirdly Heroes-y. Also there's a weird tension in the film's message: can people escape what kind of people they are?
SPOILERS I GUESS
Joe Joe (thanks for that one) seems to thinks HE can't, but that the kid can. I stopped thinking about the connection problem but this one stuck with me.