The PC-9 design has a good safety record overall across a lot of operators. birdstrike features high in losses where fatalities occur. Engine failures are usually resulting in ejection or successful landings. MAC's ended up with one crew ejecting the other not, which is about par for the course for sharing cockpits airborne. CFIT, very few cases, but one notable one far away in a land needing civil works programs on their buildings was pretty untidy. For an aircraft that goes from basic to advanced training, the PC is a very effective and reliable and safe platform. OBOGS issues... not alone in that score, refer 22's... etc.
The Navy safety mags were always great reading and hammered home target fixation, cognitive overload, dissonance by another name. As the oceans were littered with F8's, SLUFs, F4's, Whales, A6's F14's F18s, scooters, etc that still had drivers installed at splashdown, it is no wonder that Fitts, Jones, and others added to the global knowledge of why ejections don't occur. The PC-9/T6 record suggests that the training around the world has been excellent, it is more likely that incapacitation causes such an outcome, our sharing space with birds that as yet don't have ADSB fitted is a perennial problem.
Statistically for this type dissonance is not likely to be a culprit.
R.I.P. guys.