If a technical product manager was able to generate the code needed for a feature using some combination of LLMs and CoPilots—even for proof of concepts, for example—the business would need to hire fewer developers and saves significant operating costs.
Extending it to your everyday person. Aunt Jane bought a new washing machine and wants to add it into her smart house. Either she's gotta call the niece to hook it all up, write the integration to Home Assistant, write automations for her iOS devices, etc, or, she asks her favorite LLM / Co-Pilot for help and it step-by-step walks her through it directly, with code, with individual troubleshooting.
There's business in both use cases, but the total addressable market is quite a bit bigger for one of them.