If he comes to downplay. Luffy used G5 and failed to take out Lucci and it's not a problem.
First, it's not confirmed Zoro used ACoC. Even if he did, that not a bad thing based on a fact Shanks and Kaido did the same to Luffy and Kid. The only difference is Zoro didn't start with a name attack.
Regardless, between Zoro's battle against King and Lucci it's confirmed Zoro is top tier. Zoro was handling an YC1 character DF awakening user with 1 swords. Zoro then evaded Lucci's name technique, while catching his sword. A much more impressive feat than G5 Luffy evading Lucci's nameless attack.