I think the OP is okay with the use of the whiteboard, but it should be used as a complement to writing code in a semi-familiar environment. There is no claim

I think the OP is okay with the use of the whiteboard, but it should be used as a complement to writing code in a semi-familiar environment. There is no claim that cooking is equivalent to writing code. The claim is that writing code is rarely done on a whiteboard (Perhaps design, architecture, or some logic back-and-forth but rarely code.) and that interviewees shouldn't be expected to perform well at something they don't do.