> To me saying "the code is the spec" is like saying "the business wants it this way because that's how the code is written". Which is obviously backwards.

Not only is it backwards, it is a belief that is completely wrong and detached from reality. More often than not, implementations contrast with business requirements both in terms of bugs and gotchas.

Also, it's laughable how code is depicted as the realization of any spec when the whole software development sector is organized around processes that amount to improvising solutions in short iterations.