correct, playlists like this shouldn’t be added as releases, nor should albums that don’t actually exist (physically or digitally)
the videos can be added to MusicBrainz as releases (tho what the release group types should be used is currently under discussion)
as to how to get album names for your own collection, that could likely be achieved with a taggerscript (tho might depend on the releases having some key details if you want to automate it a bit). I could try and help you write one up, if you’d like, or if you’d like to work it out yourself, it’s under Options → Scripting, and there’s a basic guide there to help you work it out~ (and more in the Picard docs)
a few pointers if you wanna take a crack at it, the checkbox next to the script name in the list is whether you want the script to automatically run or not (they can be manually run from the context menu, so it’s your choice). also, I’d probably use an $if2() function, so that if multiple things are true, it only sets the album title once (like a rock cover, for instance)