I get what you're saying. But none of those examples actually involve someone literally dying. If the animatronics on the Great Movie Ride had keeled over with fake blood spilling out, that would be more of a 1:1 comparison. (I know, I know, the hijacker of the Great Movie Ride ends up as a skeleton, but I don't think anyone has experienced losing a family member who touched a forbidden jewel).
As it is, the Ghost Host is essentially telling you that "your goal of leaving this room could be accomplished if you hang yourself like I did." I don't think that's a message I want anyone to hear, whether they have experience of suicide or not.
Nah, blood is not required.
She still got shot and killed by a gun.
Imagine how many people walked through the queue of Test Track having seen crash test dummies in extreme sitautions of what would break a human neck looping in that environment, knowing their loved ones died in a car accident. A lot of things can evoke.
And other examples do involve death. Mr. Toad has a plot point of getting hit by a train and dying. Still a fairly common event today of tragic death as well as car accidents in general.
Goofy does not expire because he is a cartoon, much like a characterized ghost still talking to you, it is fiction. People sitll get killed by electrocution very often and Disney has this gag in two major attractions.
I did not see my mom die.
You see a skeleton hung. Not someone actively jumping to be hung and telling you to do the same. I don't see why your gun one has to involve the act.
your final point I see as the opposite. Typically, horror gets people to want to live. Visceral celebration of life. He never said it was a good idea and only way. He admits to only doing it to frighten us.
Remember, the Haunted Mansion also features being perpetually shooting each other with guns. One can presume that is how they met their end as well.
None of it is as explicit as gangsters having Pirates or gangsters shooting towards/AT you in the crossfire.
Or actively drowning someone in a well.
Humans are sometimes momentarily reminded of things not directly connected(we are wired to look for patterns and reminders) but are resilient and are typically good about knowing the intent.