Its the fact zuko doesnt have the scar on his chest from saving katara? They definitely did it on purpose because why does aang still have his scar from azulas lightning but NOT zuko? The only reason is because it LINKS zuko to katara. But Atla creators dont want it, but why? The scar was a focal point because it literally linked them together. If that scar was there, that would be something zutaraians would latch on and they did NOT want that. Why are atla creators so hardcore about zutaraians?