They got distracted because they were about to whoop Kaido.
Only the most stupid ppl among a group of most stupid ppl will say Luffy will whoop Kaido if Cp0 doesn't interfere ROFL.
Kaido doesn't look even half done in this chapter.
Cp0 save Luffy reputation.
Such that he won't look that bad because there's gonna be excuse to his 4th defeat
In other words CP0 just stole Kaido clean defeat of Luffy 4th time lol
As such the chapter title
It's not Kaido fault when ppl got distracted and lose the battle, only to make excuses which Kaido dispise about it
And yes this is a Dressrosa KKG version of Luffy
It size look as big as KKG if not bigger in this chapter
This is current Luffy at it's limit.
If you still have questions about this isn't KKG or not
Then ask yourself why wouldn't Luffy use his strongest attack when he already said this will be his final attack.
Luffy - " If he doesn't fall after this, than its over"
Forget KKG, this is Luffy strongest attack he could do.
Only awakening (which Luffy doesn't aware of if he could use) is the power that could turn the tide right now. 100% awakening incoming