Reflexively
Luffy was knocking out people pre time skip before he knew he had CoC
Loki himself also just now realized that he was using AdvCoC to damage the holy knights in the past… he just realized this now when Gaban said it
so Zoro isn’t special. You simply have a problem with him having the ability at all
You don't need to have knowledge to knockout people with CoC.
You need the knowledge how to coat your attack with CoC you cannot do that by accident.
There's also statements from people that Luffy accidentally used CoC to knock out those fodders by accidents. Do you have statements that Zoro used COnqueror coating by accidents from other people?
Loki did not know conqueror coating can damage holy knights. That's different with Loki he did not ralize he can coat his attacls with conqueror haki.
I have a problem with bullshit like Zoro mistook coating his swords with armament haki as coating his swords with conqueror haki. That's bullshit.