Earlier quoted context omitted.
I suspect it was less about the legal merits and more about punishing (whether or not they won) through the lawsuit itself.
"The process is the punishment"
In this case however the story currently is two times(!) on the front page of haackernews (which isn't a music celebrity gossip site), bringing a musician into spotlight who's career was far from its peak. Hardly any better Marketing campaign one could imagine.