Yeah but if you look at it from a lore point of view, the individual champs are the large cuts above literally every Average Joe in their entire world. So of course most can and do metaphorically just swoop blindly into fights and return triumphant.
All the champs ingame are meant to be the top dogs irregardles of their background, species or the champs concept. Even if that concept is to be the underdog, the fact that this hypothetical champ would be an ingame character means they have some kind of strength above most.
You can't give the most adept maths kids shit for consitantly getting the highest scores in the class. Or the best sports players on the team for making most of the goals.