I have noticed the same. I wonder if there aren't unresoved guilt feelings. I still feel guilty about not being there when my mother died. I can only imagine how I'd feel if I had had to make a decision that caused her death, necessary though it might have been.
I think you are absolutely correct. I just wasn't going to say it. I kept thinking that it might provoke someone into thinking about it and realizing that they are mixing their own guilty feelings with something that needs to be looked at logically.