i still don't think this is satisfactory then. my beautiful elder sim died and it was witnessed by her fiance and son-in-law and they both grieved, but her daughter and grand daughter, who turned up at the same time as grim reaper were just smiling and sighing away as her body was reaped. since it is part of the game play that the newly expectant mother will autonomously share the big news with the father, i don't see why code can't be added in so that the bad news is autonomously shared by to the whole household and at least immediate family, so that all can actually grieve for days regardless of whether they were there at the moment of death.
honestly i almost thew the game away when those two just stood there and chuckled away to themselves. their reactions, compared to the other two, were ridiculous and they just spent the next two days as if nothing had happened while i had the men of the household trying to deal with their grief.