That slacktivist blog's disection of the first book is terrific. My favorite bit and one that the blogger keeps coming back to is that all of the children have disappeared in the Rapture. Since they are considered innocents and this includes for example babies in the womb. So roughly a quarter of the population of the world has disappeared, all of the children, all of the babies.
Yet nobody is bothered by this. There are no traumatized parents, horrified and haunted by the sudden and mysterious ripping of children from their arms in an instant, disappeared, never to be seen again. There are no effects on the economy, despite the fact that all products and services that are child related are now as useful and meaningful as flint knives.