At the very end of the episode 30, the dialogue reads:
… but at that place, for that one moment the hero killer was the only one who stood up to fight against his opponent.
I just don't know what it could mean. Is it that this guy was standing and the others were lying on the ground or half-sitting? Why does it matter? It's phrased in such a way that you'd expect some teachable moment wisdom or a thought-provoking metaphor, but I just don't get what it could mean in this context. Maybe the meaning was lost in translation of the subtitles.