Well a central argument Boettner uses in his Millennium to defend the Postmil position is exactly this: that, in his view, at the time of writing the book, there was a great flourishing of Christian culture in the world (even using things like the many Christian magazines and radio shows at the time as evidence of the Postmil position). I read that book looking for a defence of the Postmil position and I was less convinced in it after reading the book than I was before. I thought he made a very weak case. On the other hand his treatment of Premil is excellent and that is where the book is most valuable.
Amen. Me too!