This isn't being fought over a data breach or privacy concerns and that's why Epic is smart to fight at this angle. Apple says "you can't do this", but Epic do

This isn't being fought over a data breach or privacy concerns and that's why Epic is smart to fight at this angle. Apple says "you can't do this", but Epic does the thing and says "I should be allowed to do this. As you can all see, this is what happens when I try to put my foot down on it and here's this target audience of people who are benefited by the thing I'm trying to do". This works for them because they are advocating for a freedom of software choice and to rebel against the massive profit line that has made Apple the target of Spotify's legal hate as well. The rules they broke prevent Epic from doing a thing that consumers would prefer (lower prices) and has been argued against by other parties (30% cut). It doesn't really matter that they broke the rule if the court of public and legal opinion is that the rule was not good to begin with.