No I was establishing that Zoro can react to top tiers. Many high tiers can react to top tiers as well. There isn't a notable speed gap between them.
Luffy has been saved 8 times on panel.
- Once was from Law
- Once was from Zoro with the aid of Law
- Six times were from Zoro alone
Well, Kaido dodged the slash. It's also not something he can spam anyhow since haki is finite.
I think his current feats and portrayal merit the low top tier designation.