Yes 1080 cannon is just wind released, it is not a finisher capable of taking YC1 level guys down.
Here Kaido and Big Mom each use 55% of their max capacity (no adv CoC used, and a ranged attack which is weaker than a melee attack from a melee specific weapon) to create an attack 110% of their max capacity (outside of awakening), and it low diffed Zoro. Similarly an adv CoC Raime Hakke which is 90% of Kaido's max capacity (outside of awakening) would low-mid diff all out Zoro.
Boro breath if not cut through with specific counter techniques melts normal humans, boundman Luffy doesn't have normal physiology.
Boundman Luffy would have no sold Hakai just like he no sold boro breath. If he used King Kong gun he would have overpowered it.
Luffy was worried about Zoro (and the others hence his warning),
Here Kaido and Big Mom each use 55% of their max capacity (no adv CoC used, and a ranged attack which is weaker than a melee attack from a melee specific weapon) to create an attack 110% of their max capacity (outside of awakening), and it low diffed Zoro. Similarly an adv CoC Raime Hakke which is 90% of Kaido's max capacity (outside of awakening) would low-mid diff all out Zoro.
Boro breath if not cut through with specific counter techniques melts normal humans, boundman Luffy doesn't have normal physiology.
Boundman Luffy would have no sold Hakai just like he no sold boro breath. If he used King Kong gun he would have overpowered it.
Luffy was worried about Zoro (and the others hence his warning),
The attack Roger used to make a plaything out of Oden of all people was also a wind blast.
If you're ignoring the insane portrayal and hype it got from Kidd, Law, Luffy, Killer, and Kaido/BM themselves just to call it a "wind blast" then you need to re-consider a lot of things.
Raime Hakke with CoC coating couldn't even deal half-decent damage to Law on a direct, unblocked hit lmao. Not only the guy got back up in a page or two, but then he went on to fight BM right after and showed zero hint of any lasting hindrance. Hell, Zoro with 30+ bones broken and almost depleted stamina did more damage to Kaido than Kaido's TB did to Law.
And Law is really, really not a physical monster.