I don't get it.
I mean even if we say Kaido wasn't serious until the one on one, that means that Luffy and four other guys still weren't doing it for him after he'd already fought the Scabbards. So Luffy was just another one of them until that slight upgrade, and even then Kaido says he didn't stand a chance. How does that put him above a guy who was carrying him all around the battlefield after his stamina went?
I mean even if we say Kaido wasn't serious until the one on one, that means that Luffy and four other guys still weren't doing it for him after he'd already fought the Scabbards. So Luffy was just another one of them until that slight upgrade, and even then Kaido says he didn't stand a chance. How does that put him above a guy who was carrying him all around the battlefield after his stamina went?