Zoro defeated killer by 1HK.O
he fainted because he was weak, he drank polluted water and ate rotten food. Every One Piece reader knows that among the crew Zoro has always been portrayed and shown since Thriller Bark with the greatest physical resistance besides Luffy. Zoro fainted, yes, but there's a narrative reason for that in which you ignore. When you are placed against the wall you simply ignore the facts.
So yeah, that's a quality bait.