There is one way to "opt out" of these recent changes: Use third-party apps to play your Spotify music instead of the official app. One such app I could refer is called SpotEQ, and the developer specifically states in the privacy policy that the app will never touch your photos, contacts, media files, motion, or location data, nor will Spotify be able to through the app. SpotEQ is only for iPhone though, so you'll have to find other apps if you're an Android or PC user.
