Arguing about whether or not it is relevant doesn't exactly advance the thread, guys.
Official ruling:
1) It is relevant, as an example of another license. If you're going to sit around speculating, some examples of what exists and can be done are relevant. Not that WotC is listening to *your* speculations, as they have a legal team and all that which trump any messageboard duffer about tenfold...
2) It is irrelevant, insofar as line-by-line dissection of legal language is useful to real lawyers, and perhaps actual publishers, but useless to the rest of the world, however hip the author is trying to make it sound.
Thus - discussing the general structure of Numenera's license as an example of possibilities is fine. But discuss the spirit of the license, please, and leave the letter of the law to the professionals.
Thanks, all!