Spotify still has a feature to share music through facebook, and that current feature doesn't require the ability to read messages. So that screenshot that only shows a "send recommendation" feature doesn't prove anything at all. No non-recommendation text is displayed on that screenshot.
Both Spotify and Netflix claim they only used access to send messages, and were unaware of broader powers. Netflix: “At no time did we access people’s private messages on Facebook, or ask for the ability to do so” Spotify: “Spotify’s integration with Facebook has always been about sharing and discovering music and podcasts. Spotify cannot read users’ private Facebook inbox messages across any of our current integrations. Previously, when users shared music from Spotify, they could add on text that was visible to Spotify. This has since been discontinued. We have no evidence that Spotify ever accessed users’ private Facebook messages.”
Note that even in the facebook statement, they don't say that the companies couldn't have accessed unrelated data. They claim that the permissions were appropriate (which they did not justify) and that none of the companies did access unrelated data.
I don't have an axe to grind, I'm pointing out that the spotify and netflix statements are pretty condemning and in a contradiction between them and facebook I trust the company saying "we did nothing wrong" less.
And nobody's voting on these posts...