You know this is actually kind of funny, cause I think it might be very possible that the roles between Tanenbaum and Intel could hypothetically be reversed.

There was a controversy a couple of years ago, with Wizards of the Coast and D&D, where they were planning on making a bunch of really bad and sweeping changes to the Open Gaming License. One of the controversies had to do with the license not having language for irrevocability, which Wizards believed allowed them to go ahead and deny people the right to make use of the old OGL moving forward, forcing everyone who publishes their OGL content to adhere to their new, more restrictive, license terms.

They never moved forward with the bullshit because the backlash was that bad, but supposedly licenses are not irrevocable by default, and so any license that lacks explicit language granting irrevocable rights can be susceptible to the same rug pull that WotC almost pulled.

And the last time I checked, guess which super permissive license does not grant irrevocability?