Spotify doesn't have any kind of lock on music. The Apple fans are all using Apple Music, after all, and there's lot of other choices out there. Ditching Spotify isn't going to affect your life or digital device using in any significant way.
I heard about Spotify through a musically-minded, but not technical, friend. I joined because of their insistence that it was a good service 3+ years ago.
Today, they complain about the desktop client and ads. I no longer use Spotify.
I'd challenge this because they can convert to paid users or advertise the service via word of mouth, or probably provide other value as well (user data, listening habits, etc.).
However, even if these users have zero value to Spotify, then why terminate them? Spotify is getting some negative press over it, so it seems like a net loss for them...
When I go to a restaurant and eat without paying, why do they kick me out?