PM's mother accepted the findings of the BOI and I believe that his immediate family (four siblings) would have had no interest in a FAI.
I'm not sure in what capacity she "accepted" the findings.
This is not about one family any more than it is about one crash. The great unwashed would want this changed, if only we could get them to care, enough to understand what is being done so badly.
The rumours and fears are just part of it. The lack of a proper enquiry has also encouraged a false sense of safety in military aviation.