There are some good points in it. It seems to be directed mainly at those in paid pastoral ministry, but I think it has plenty of application to those of us who don't fit into that category as well.
Since I'm tired at the moment and lose concentration after the first few paragraphs of anything requiring some thought that I try to read, the part I found most thought-provoking was in the second paragraph. This was about how spending all our time in church, with church people, and running church activities can get in the way of evangelism. I worry sometimes that this is the case in our church. I don't think it's intentional, but it's easy to justify not doing evangelistic activities because we're too busy keeping the church activities happening from week to week.
He goes on to suggest that viewing the church as being for evangelism is like looking at things the wrong way around. He argues that evangelism should be happening out in the world, and it is through this activity that the church (and not necessarily our particular church community, but churches generally) are built up.
Interesting stuff. Worth looking at but probably good to make sure your brain is switched on before you read it.