The point of the chapter is that he would rather die at Zoro's hands than become a warrior of science though.
After we spend an arc that where we were told by the world leading scientists, Vegapunk, to Sanji to the face, that his powers are unscientific
Twice

These are the guys that want to educate people on a children manga


90 % less trafic and 100% less effort for oda to explain shit to toddler level
