You're taking that statement out of the context of the post in which I said it. I began my post with "Subscriptions to services are fine." Everything in the post after that, including that quote, is specifically and explicitly not talking about services like Spotify.
Spotify is different. With Spotify, when I stop paying for Spotify I still get to listen to the music. But I lose the basic functionality of the app, like the ability to save songs to disk, or to skip tracks. To me, this seems like the exact model you're saying is bad. They have removed basic functionality in order to push a subscription.
My footnote is not part of my argument. It's only meant as a clarification for which types of applications (not services) I'm discussing. You also mistake what I mean by 'basic functionality'. I maybe should have said required functionality. Spotify is perfectly usable without download, skip, or bitrate. Instead, I'm talking about applications like an RSS reader (again, an application only, not an online service) that will only show you sample feeds if you're not subscribed.
That’s exactly apps likes Spotify. They restrict downloading, skipping, and bitrate unless you pay for premium, which I would say is basic functionality. You get access to the music whether you pay or not. I’m not paying for the music, I’m paying to skip ads and download to play offline.