Video games can be a form of art. Art is not always "fun". But even so, why is being honest about death equivalent to being reminded about "the pain of living"?

Video games can be a form of art. Art is not always "fun". But even so, why is being honest about death equivalent to being reminded about "the pain of living"? Death can also encompass experiences of heroism, mystery, even beauty, and much more. It doesn't have to be nihilistic or cynical.