It was funny at first...
Yes Aurelion Sol forged stars, crushed stars, is this amazing celestial being. Yes, he gets beaten by some hillbilly with a shotgun or some pirate with a hand gun. The jokes are getting old.
It's assumed the League of Legends suppresses the true power of all champions.
Just remember that realistically, most champions with simply a gun or a dart gun couldn't do crap vs most of the champions in the League.