The author doesn't touch on this, but here's something I'd add. In "exile stage one", the assumption of neutrality (which is discussed in the article) meant that children of Christians were raised bathed in the world's culture, with the assumption that some Christian teaching could be added on top to remedy the "bad stuff". This was disastrous, in terms of raising a generation of informed Christians who were equipped to build an alternative culture to the world's. What needs to be done differently this time, to avoid an even worse outcome, now that "stage two" has arrived? And, are the churches doing it?