-re the current Commandant. To be fair, she inherited decades of abuse, including a 2012 report warning of very serious recent failings. Clearly, that was not her fault. But equally clearly, she has been party to covering up the scale the the failings. Almost any fleet could have been grounded for the same reasons, but the RAF chose the path of least pain. That is why there can be no sanctions against her. Successive ACAS's would have to join her. And given the close link a recent one has had to the ATC, that's not going to happen. Doubly so, as he was later DG MAA.
What one should be looking at is the management structure. Who, for example, was the Type Airworthiness Authority? Then look at what other aircraft he was responsible for. Then look at other threads here, involving actual loss of life, and MoD admissions that the same failings exist. Poor engineering standards, no safety case, no valid RTs, etc. This is not just about gliders.