Hi! I co-wrote the first one, and it is definitely not intended to be a CS canon. Those books are our suggested resources for folk teaching themselves computer science, and were evaluated on that basis alone. We included not-great books where they're still the best we've found for a particular topic. Equally we excluded dozens of amazing books that are outside the scope of the resource.

I'd love it if some more people could vouch for these sources. The both look very interesting.

They're both interesting but they're not "canons" in the traditional sense. The first is a short resource of the bare-bones subjects in CS with the handful of most popular books, and the second is an intro book about basic math and algorithms.

edit: to add, I think they're interesting but I would not refer people to them.