Even Luffy didn´t surpass Oden yet, Oden did this with one slash, Kaido was never look like this against the Supernova:
Let see how the supernova face Hybrid Kaido, for sure Kaido was sure that Oden could kill him 20years ago with means he was not even sure if hybrid Kaido would be enough, let alone awakened form(if zoan awake has a third form). I can understand the Zoro hype since the last chapters, but still it is a goal to surpass Oden in the end of the arc, both Luffy and Zoro must go this way. Oden was a legit mid top tier/high top tier.