I'm not sure if I agree with every aspect of the framing here; specifically, I don't think the efficiency gains are anywhere on par with a combine harvester.
However, I do agree that the premium shifts from mere "coding" ability -- we already had a big look into this with the offshoring wave two decades ago -- to domain expertise, comprehension of the business logic, ability to translate fluidly between different kinds of technical and nontechnical stakeholders, and original problem-solving ability.
Yeah I think the combine-harvester analogy is tempting because it's so easy to visualize how wheat can scale over a big square field and project that visual onto lines of code generated on a big square screen... forgetting that lines-of-code-generated is not inherently useful.
However, I do agree that the premium shifts from mere "coding" ability -- we already had a big look into this with the offshoring wave two decades ago -- to domain expertise, comprehension of the business logic, ability to translate fluidly between different kinds of technical and nontechnical stakeholders, and original problem-solving ability.