On page 43 Keel writes, "We no longer live in the world of modernity...We are indebted to it and wary of it, and well we should be."
I love this quote because I find a lot of postmodern-loving people who are really just modernism haters. When, in reality, modernity haas given us so much. Through categorization we have been able to find and learn and discover all sorts of exciting things about ourselves and our world. The problem occurs when we substitute the worship of God with the worship of the modern understanding of God. Keel deals with this very well. It seems that, over time, modernity no longer worshipped God but worshippped their understanding of God.
It's a tricky little nuance, which makes it hard to detect. So you don't even know you've got a problem until its too late.