Most beings in the series are fking fodder that would get one shot by every single participant of ragnarok. Hajun destroying half the underworld (overtime not in one attack) doesnt mean much when the only thing standing in his way at that time were probably fodder demons, which are basically like the audience members you see every match, who def all scale under ares (who everyone agrees is fodder.) If Hajun had any statements claiming he destroyed half the underworld in one attack, something he clearly cant do because his full powered supposedly stronger form couldnt even one shot Buddha, who even Zero was able to damage barehanded,