I love pieces like this.  I think DBAs need to know that experts make big mistakes too.  We have a webshow, DBAs@Midnight, and we used to go to PASS and interview some of the biggest names.  One of the questions we always asked everyone was "What's the biggest mistake you've ever made in production?".  We wanted to regular DBAs to hear that even the biggest of the big have made mistakes.  BTW, my favorite answer came from Itzik.
These pieces are always a delight.  If you pin me down sometime at a conf, I'll tell you how I brought down a cluster for 80 sites.