I don't know, I started going to movies with my grandparents in the time of the disaster movies so maybe I'm born to see friends and loved ones get killed off.
I loved that Quint got eaten by the shark.
I loved that Spock died in Star Trek 3.
I love that Ben got killed in Star Wars.
I love that Kyle Reese got killed in Terminator.
I love that most of Bond's sidekicks and lovers get killed.
I love that Dirty Harry's partners always die.
I love that all the marines got killed in Aliens and all the commandos in Predator... people still love them.
By the 90's and after, they really did stop killing off so many friends and confidants. So maybe it has to do with the decade you were born.