Why do Admiral fans throw a hissy fit when ever the Admirals take a L it's not like they're some invincible unstoppable force that could never lose or die.
Admiral fans want the Admirals to be above the Pirates in a Pirate manga, when Marineford WAS their pinnacle.
Just like Jack was introduced as an unstoppable force in Zou, and then got humbled to hell in Wano, Oda will eventually have the Admirals get overwhelmed. It's a Pirate manga, the Admirals are doomed to lose, it's just Oda made them look so good at first that Admiral fans hate seeing the characters they love so much facing potential Ls when all they had was Ws before.