That church people (especially 'leaders') should acknowledge and reflect upon the consequences of post-modernism is to be welcomed. That the number of unchurched in the USA would amount - if they were a country - to the fifth largest in the world has certainly forced people to think about the relevance of the Church, the nature of its Message and the manner of its preaching and practices.
For any country (especially the USA or the UK) to blithely assume itself to be "Christian" is, in this post-modern, Secular Age, a profoundly destructive delusion and a suicidal self-denial. The book's strength lies in admitting this is a serious dilemma and that questions need to be asked about Christianity's methodolgy. What it lacks is the brutal honesty necessary to even consider that the "Gospel" (or "Message") the majority of Christian groups ("churches") proclaim, preach or pontificate upon is NOT the Gospel of Jesus, Paul, Peter and James AT ALL! "Emerging Church" may discuss a measurable phenomenon in 21st Century church history and development, but it falls short of even recognising that "Unless the LORD builds the house, they that labour do so in vain." (Psalm 127).