There’s a big difference between preventing ongoing distribution of someone else’s content after a contract has ended, and deleting personal copies of that content. Labeling this as “library recordings” makes it pretty clear that anyone using that feature is expecting it to function like a personal recording. Otherwise why have that feature at all? Why not just rewatch the original episode instead of saving it to your personal library?

If one were to take personal recordings and start selling them, that’s a problem and we already have copyright law that addresses it.

I would argue it's not a personal copy if it's stored on Google's servers.