Kaido and Yamato clashed using AdvCoC but does that make Yamato top tier? AdvCoC clashes for top tier clashes have to be sky splitting we can't set the bar so low for this. So far the story has shown us sky splitting is the pinnacle of AdvCoC clashes.
a)Didn't seem that intense
b)Kaido wasn't blown back by impact of Yamato's CoC
c)Yamato used his strongest attack in strongest form while Kaido was playing with her
Zoro is using one of his weakest attacks in his weakest form, not even King of Hell Special and Gandhi still got blown back.