What would be the incentive for someone to do this for real?

We all have access to SOTA LLMs. If I want a "clean room" implementation of some OSS library, and I can choose between paying a third party to run a script to have AI rebuild the whole library for me and just asking Claude to generate the bits of the library I need, why would I choose to pay?

I think this argument applies to most straightforward "AI generated product" business ideas. Any dev can access a SOTA coding model for $20p/m. The value-add isn't "we used AI to do the thing fast", it's the wrapping around it.

Maybe in this case the "wrapping" is that some other company is taking on the legal risk?