You have to millisecond pause on the Egghead PT2 teaser right after Luffy goes Snakeman or play it in slow mo but it's there, it's this scene animated:
What's being implied is that Luffy literally never made contact with Kizaru directly outside of the first kick and WSG.
So Snakeman quite literally could not touch Kizaru.
Kizaru was also most likely blocking G5 attacks here with the same method:
Basically between the start of the fight and the end Kizaru deflected incoming attacks with light orbs.
This is why the anime is useful, Oda's art
@Elder Lee Hung is so trash that you can't actually tell what's happening when the character's abilities