squibb
The problem is that MAA's remit is based on implementation of Haddon-Cave's recommendations; or at least those that MoD accepted.
As Haddon-Cave omitted the evidence about the behavior Chug describes, the MAA does not address it. How convenient.
As has been said many times, the senior hierarchy of the MAA is mainly serving RAF officers. Not one of them reported the systemic failures when in previous posts, so either;
a. They have no experience in airworthiness, as anyone involved in the subject over the past 20+ years knows exactly what was going on, or,
b. They made a conscious decision not to report the failings, which is a serious offence (misconduct in a public office).
Which is it to be?
The MAA leader has a clear duty to report this serial misconduct by his fellow senior officers; past and present. He hasn't. How convenient. How illegal.