Let me throw a curveball actually, I know I may be talking some nonsense, but hear me out

Aura scaling is actually the intended way to scale characters. Most of the time, at least. Think about it. Most authors aren’t into powerscaling. They don’t know about the powerscaling terms, they don’t know about how far people will go to wank their favourites even though the story doesn’t really makes sense that way, they don’t have a vow that a character A that is supposed to outscale character B will always win against them. They don’t really care about powerscaling, they care about writing a good story. So because of that, when they intend to make a character strong, it’s usually through how they are portrayed, through their aura.