You cannot have been a murder hobo and then later on magically become a hero. All the killing of innocents you did doesn't get offset by all the killing you now don't do. It doesn't work that way. If you used to do horrible things, all the "good" things you may now do don't even in the slightest make up for or erase all that evil you did in the past. So Larian can say all they want that DU can be a "hero," but that's complete B.S. DU can NEVER be a true hero (and ditto for the other original origins).
You sure they used 'a hero' as in a heroic sense? May be it was just a word that equals 'a character'. By the way, heavy sins don't cut you off from becoming a better man and atoning for them. Watch some Vinland Saga or something
