That authority is OP but has a very hard condition to unlock. But it's worth it considering it's power and it isn't even an authority that he will always use whenever there's a fight. It's just like hand of Almighty its a hidden trumpcard that is reserved for something that can threaten him.
Im happy that he isn't walking the path towards becoming an arrogant young master or generic Xianxia protagonist, I hated when you added elements from Xianxia onto your story, it made your characters feel less human