From the other phoronix article:
UPDATE: When asked whether Linus Torvalds was under any sort of NDA around this, he responded:
"No, but I'm not a lawyer, so I'm not going to go into the details that I - and other maintainers - were told by lawyers.
I'm also not going to start discussing legal issues with random internet people who I seriously suspect are paid actors and/or have been riled up by them."
I don't love this decision, but I think if you're willing to read between the lines here, it sounds like maybe he didn't have much of a choice. Then again, Torvalds also seems pretty happy to comply.
In other areas, sanctions don't always mean a complete ban. For example, Ian Nepomniachtchi is still allowed to play chess internationally, just not under the Russian flag. This seems needlessly putative unless there are legitimate security concerns.