Mourning/Grief moodlet although Sim was spared/resurrected

I had this months ago, and it's happened again. Last time, my sim died from hysteria and was spared because of a death flower. This time, it was a meteor and gnome protection. Both times, my sim's family and friends who witnessed the event continued mourning him and receiving phone calls about his death. Since Life and Death, I haven't had a single witnessed spared death that didn't result in grief for those present. 

I can understand witnessing it being traumatic regardless, but the moodlets don't match up. They're missing someone who's right in front of them. I guess there's something that's not clearing the grieving state when sims are spared.