A huge problem with the Netlix remake is that at every point they refuse to engage with the heart and soul of what makes these characters interesting and subversive for a fantasy story just for another boring action scene.
Zuko refusing to fight at all is CENTRAL for his story.
Making Zuko fight Ozai is the proof that the creator of this show don't have sense. I won't be surprised if Zuko beats Azula in the last Agni Kai and not Katara