Why did he make the effort to be pissed? He was half right, but overspecified, and was corrected. It's not like he belongs to a societal group which can Never Be Publicly Wrong or they lose status.

Foolish dude.

(I have definitely noticed as I get better at cooking I get better at interpreting elliptically written recipes, but it's the general experience that helps.)

(also I am contemplating putting a recipe on my cenotaph, hahahah)