Luffytards pretend to get surprised that the battle against Seraphim quickly turn into 2 vs 1.
It is not that surprising, it is what Luffy keeps consistently doing since Dressrosa arc. Never soloed Doffy, Cracker, Katakuri, Kaido etc. Now he can't solo the Seraphim. His 1 vs 1 era ended with Chinjao, and never continues anymore even until the boy becomes a Yonko.