ORAC, I think you are confusing threads. We are talking fighters not crashes. The AAIB report, I guess, refers to the issue of 2 single seat jets flying into the ground.
The T-bag-F15E incident, as Beags pointed out was actually two pair of single seaters too.
The issue then is would the additional supercargo have made a difference? True there have been incidents of aircraft with supercargo flying into the ground as indeed there have of Jaguars before they got the INAS fixed.