Okay, progressing past the overall philosophical yes/no keep issue, on the technical side there is a real challenge figuring out where the blood spatters should go.
For example, the other night I survived a wounding long enough to study the cockpit damage. One bullet hole behind my head on the right side resulted in blood spattered equally on both the right and left front cockpit panels but not the center.
Whew -- slug didn't go directly out my forehead!
But then where would the slug have hit from that back southeast angle to spatter blood northwest and northeast but not north?
Blood spatter is certainly an advanced damage concept. While we're talking about it, wouldn't cockpit smoke or, as often suggested, oil smears usually be features to add before aircrew fluids?
And if cockpit smoke is added, where are the cockpit open or jettison controls?
Given a choice between adding aircrew damage or adding more new planes and vehicles, I'd much rather have new planes and vehicles.