Why is one bummed about the Superman comic?

I really don't know. Such a comic could be the result of someone's very unique and perhaps even controversial imagination. It's hard to say what the motivation behind it is.

Perhaps the comic creator wanted to shock readers or present a new challenge for Superman. It might also be a way to introduce new characters or relationships within the hospital setting.

Well, Superman might be angry in the comic because his powers weren't enough to stop a huge threat. Or perhaps there was a betrayal by someone he trusted. It could also be that the world just wasn't living up to his ideals of justice and peace.

Maybe he's facing a big threat or injustice that makes him furious.

Maybe he's facing a huge challenge or loss that's too much for him to handle.

Maybe the story doesn't require Superman's presence or it could be focused on other characters and their arcs.

It was a plot device to create drama and shock. Maybe to show the vulnerability of even the mightiest hero.

The Superman comic could be sad because it explores deeper emotions and challenges that the hero has to overcome. Maybe there's a moral dilemma or a sense of powerlessness in the face of overwhelming odds.

Maybe it's because of some crazy plot twist or a powerful villain. Hard to say for sure!

Maybe it wasn't popular enough and didn't make enough money for the publisher to keep it going.