The Gap between Luffy and the rest of the supernova is huge. This chapter just showed us that.
In Whole Cake Island, Big Mom needed to use Haki and her bodyweight to block Luffy's Gear 4 Boundman Kong Gun( without advanced haki) and it still shook her arm.
In this arc, she has not used haki to block kid or Law's attacks.
Not only that but the gap im durability between Luffy and the rest is massive.
Kaido used Advanced CoC + CoA on every attack he knocked out Luffy with, indicating that Luffy cannot be taken out through normal means.
Big Mom uses Advanced CoC on Ulti but not against Law and Kid.
Luffy takes a partial thunder bugua, multiple club attacks and was not knocked out.
Then Luffy took A Ragnarok, and got up even faster than it took Akainu to recover from Whitebeard knocking him out.
The Gap between them is massive.