Moreover, Superman being a quite superficial superhero, for the most part, missed the mark on digging beneath the surface because Henry Cavill is not much of an actor.
All we know is that Krypton faced destruction, and that is the reason why Kal-El arrived on Earth. Not much of a backstory aside from his parents trying to save their firstborn.
More than a year ago, Tumblr exercised this purge. Remember when the social media platform explained itself by saying it wanted to get rid of porn and anything subjective to sexual posts? They created their demise.