If you'd try to certify any modern Linux distribution, you'd end up with a very similar list.

- The Linux kernel also has timer coalescing

- Linux also has lazy atime ('relatime') by default

- No Linux distro installs uucp by default, and certainly not suid

- Desktop distros will also run a file indexer of some sort

etc.

Isn’t the difference here that Linux was never trying to claim UNIX certification?