you missed what the article was talking about
yeah, they're available by search if you know what to look for; that's the same as asking the store employee if they carry X, as opposed to seeing it as you browse the aisle
> A more apt analogy is a grocery store with a dedicated section for store-brand goods only
No, that's not the right analogy and not what Spotify is doing. That would be like having a section for "undiscovered artists" on the front page where you can browse through them, alongside another section for "Spotify-sponsored artists" which you can also browse through.
The point of the article's argument is that unless you know you want Artist X and search for them, you're not going to come across them because they're not being added to Spotify playlists and content discovery mechanisms (obviously you can add them to your own playlist manually). You'll instead come across the content that Spotify owns, allowing it to keep a greater share of revenue and pay less to artists trying to distribute their music through its platform.