That ppi domain is deliberately crummy, because it is intended as a public service to expose the underhand tactics of the government, not to make money (although it is paying for itself).
They let the info creep out through that site and, apart from two poky little paragraphs in two broadsheets, it hardly got noticed.
Strangely, there is a report on that gov site from the 50s which is of great historic interest to some people. Try to access it, and it is unavailable, or you get one small part. It all goes back to Mr Blur ...