That's a nice slogan, but how does it work?

Say, I clone sudo. Clearly, a human applying freedom zero. I use it in my projects. Probably still freedom zero. I use it in my CI pipeline for the stuff that makes me money... corporation or human? If it's corporation, what if I sponsor a not-for-profit that provides that piece of CI infra?

The problem is that "corporation or not" has more shades than you can reasonably account for. And, worse, the cost of accounting for it is more than any volunteer wants to shoulder.

Even if this were a hard and legally enforceable rule, what individual maintainer wants to sue a company with a legal department?

What could work is a large collective that licenses free software with the explicit goal of extracting money from corporate users and distributing it to authors. Maybe.

Not for commercial use without buying a license is a pretty standard licensing scheme. This has been worked out for decades.