When you don’t use the best pilots to fly expensive aircraft, accidents happen...
The military in general doesn't concern itself with who's "best," their standard is who's "good enough."
Like the old joke, "What do you call the person who graduates last in their class from medical school?"
Doctor.
Same goes for flight school. A qualified pilot is a qualified pilot. Military aviators, in principle, are fungible. You don't get flight pay for being substandard.