For sure! But I don’t really want to pre-create static playlists for my musical whims most of the time. That is not really the important part of this issue to me.
But the fact that Plex seemingly can’t properly utilize the Artist field in a music file kind of highlights that the music library in Plex is lacking a lot of basic handling of music files. This has been a requested feature since 2015, but it’s still not implemented properly. It got a lot better along with the release of Plexamp, but it’s clearly still a lot of work left on the server side of things.