Sure - but as you can see here the focus on "ditching spotify" is often ethical. You can absolutely use services that have an artist pay-rate of $0 per stream, but I don't think people typically advocate for that - and indeed this author does not seem to either (otherwise they would have no collection size issues).
The piracy route can even be ethical. Compare:
* Have a Spotify subscription, listen to all 10 albums of some artist.
* Pirate everything, but buy a T-shirt from that artist.
* Buy one album digitally (their latest), and pirate the rest.
What is the artist earning from your contributions in these three cases?
I expect many people think: "fuck spotify" and "i dont think piracy is bad" at the same time. I don't think leaving spotify on an ethical basis implies any specific opinion on piracy.