Very thought provoking stuff kiwiblue.
I have seen an accident report (written by CAA) that was written in such a way as to support an issue that was close to the heart of CAA. Some of the conclusions drawn were certainly stretching reason. Since then I have looked at some accident reports with a healthy dose of scepticism, especially when they have been done by CAA.
You mention the recent Partenavia report. I saw a comment in there which I'm sure was put there to support a current CAA initiative, even though that document was produced by TAIC.