In general I prefer the cock-up theory.
Haddon-Cave spent 170-odd pages ripping MoD a new one over an invalid safety case. Then Flt Lt Cunningham was killed, and the SI couldn't find a safety case. Five years after H-C, 11 years after ASaC, 20 years after MoK, the gliders don't have one either and are grounded. That's not a ****-up. There is a conscious decision in there, a controlling influence. And it's not Gp Capt P. Ask him if he thinks there should be a safety case. I put my house on him saying yes. You must look at those who are happy to say NO, in writing, and who brief Ministers against those who prefer to meet legal obligations. As someone mentioned, there's a book naming names, and it specifically states that only 2 Stars or above are named, and only then if it can demonstrated they were advised of the failings. There's a reason MoD cleared it for publication. The truth.