Since the start of One Piece, Luffy has defeated these enemies mostly on his own. Even when the level difference was huge in the first round.
The current turn of events doesn't surprise me, I was sure Luffy was going to single-handedly beat a weakened Kaido.
The only thing different here is that Kaido was weakened a bit, by allies and lifting an island so that Luffy had an opening and wasn't directly stronger than Kaido after their fight. Otherwise, Luffy and Kaido were sure to duel each other.
The current turn of events doesn't surprise me, I was sure Luffy was going to single-handedly beat a weakened Kaido.
The only thing different here is that Kaido was weakened a bit, by allies and lifting an island so that Luffy had an opening and wasn't directly stronger than Kaido after their fight. Otherwise, Luffy and Kaido were sure to duel each other.