Yeah for sure, that’s what makes it such a huge improvement to the problem. I certainly don’t think relays should host video, I don’t even think they should host images. But hosting, organizing, and making largely persistent the vast amount of data that YouTube does in a responsive manner seems a Herculean task.
I have faith it can be done, but aggregating a video database from potentially 100s of CDNs is going to be anything but a simple or straightforward problem, imo. Very curious to development in this area though.