That's not my argument at all! Though I can see why you took that away; my bad for not making my argument clearer.
I believe that even when we have AGI, code will still be super valuable because it'll be how we get precise abstractions into human heads, which is necessary for humans to be able to bring informed opinions to bear.
IMO, black boxes that "just work" will be fine provided they can produce intermediate artifacts and explanations that make sense. The people that I know who use CoWork already don't care about how the agent got the result as long as the outputs look right and the process is explainable.