- BSD: which had massive question marks over ownership
- Minix: which wasn't free back then
- or a commercial Unix
These days you have a dozen BSDs, Darwin, several OpenSolaris forks, hundreds of Linux distros as well as non-commercial licenses for many commercial Unixes. Minix is free. Free reimplementations of BeOS too. And that's before you count the plethora of free non-POSIX systems like Plan 9, ReactOS, and so on and so forth.
And, ironically, there's now less of a need for competition in this space because web engines have replaced OS kernels for a lot of common use cases and WASM is fast becoming the new ABI.
To be clear, I'm not saying this project has no merit. Nor am I saying there is zero chance this project might evolve into something big. I'm just saying that quoting Linus like you have is extremely simplistic.
So you think they're lying about not having implemented block devices nor a network stack...? Or are you suggesting that NFS doesn't need network nor file system support?