kill guma = win

the role ADC is made for high dealing consistent dmg because it is a carry role and guma is just insane so both

guma is a 3x worlds winner and 1x finals mvp, he's in goat convos in his role

however the way league works is that attack damage carry (his role) is the main damage dealer, especially because HLE's team comp had a tank and 2 bruisers, so they don't have the damage to be able to kill Bin who has a lot of life steal bcs he'll heal off them easily

so he's the only real way they can kill bin, who is the main damage in extended fights of blg

ADC is a role that rewards players who are extremely good mechanically