An algorithm just deleted entire channel without a warning?
At YouTube's scale it's almost impossible to not mess up these kind of things some of the time, that's okay. The unforgiving part is that they just don't care.
[1] https://en.wikipedia.org/wiki/Weapons_of_Math_Destruction
$ youtube-dl -o '%(uploader)s/%(playlist)s/%(playlist_index)s - %(title)s.%(ext)s' https://www.youtube.com/user/TheLinuxFoundation/playlists
And the cost of getting it wrong is pretty low for youtube.