We know oden used Adv Coc here to permanently scar kaido,and even shanks divine departure looks similar their is no lightning leaking from the swords but its around kidd. Zoro attacking lucci looks similar to both of the other attacks. Instead of focusing on zoro vs king look at how oda did the others as well.
Zoro used a top tier level attack, just take your W and stop this nonsense about it only being CoA.