Descriptivism is all well and good, but I don't think your definition of the word is well established, even in this context. Did I miss a vote or something?
What this whole thing sounds like is, "I unilaterally made up my own definition of a word and I will correct people who don't use it that way and everyone who disagrees with me is just quibbling."
And regardless of the relative popularity of that usage, I can't see how I'm the one with the "pointless definitional quibble", since the context is someone calling out the author for using something other than their favorite definition of "code".
