I believe Oliver Burkeman calls it "daily-ish" because it may not be realistic or helpful to force yourself to do it every day. But striving for "daily-ish" is worthwhile.
> Playlists are a nightmare to manage because you can't create any folders or organization
The desktop app on Mac allows for folder creation. While not looking very hard, I wasn't able to find the same functionality on iOS. Would be a nice addition to iOS if it is not available.
I should specify that the folder limitation seems to only be on the mobile app. There's no point in organizing with for folders if I can't use them on mobile where I primarily use spotify.