Literally everyone did it not just Sanji and it was a comedic gag for everyone since Nami flashed them back with consent.
There was no consent in Punk Hazard or in Wano. Is that so hard to understand?
Totally cause this is blocking move
He blocked her all right, blocked her with a kick
Great. Besides the cake what were the instances of Sanji acting like a chef or showing any cooking skills he learned in Okama land or even showing a hint of doing anything to find All blue?