I agree, but want to say that the reason I feel it is ill advised is not the effect the pictures have on people, but the existence of a politically correct environment where bureaucratic people (both in and out of the military) might get wind of pictures like that and feel compelled to make an issue out of it.
I don’t understand why someone would need to take pictures of a corpse (you would think if you saw enough of it, you wouldn’t need images because the sight might reside in your head where you might not want it to appear) but I have never been in combat either, and I can on some level understand that there is something terrible and engrossing about it that affects people in ways that don’t make sense outside of a combat situation.
The context is so beyond our ken (those who have never experienced it) that we have to maintain leeway for those who have, IMO.
No doubt the photo thing is a deep innate, basic thing. Deer hunters just have to have their pictures taken with the big buck they shot. Fishermen just have to have their picture taken with that big catfish. Caveman instinct. Isis and Mexican cartels show off heads of victims.