My point was that anyone who makes games for the PS4 is aware that the system offers that, and I'd imagine part of their deals with Sony include explicitly authorizing that. I they don't want people doing that, don't support the system.
And Napster shouldn't have been shut down; to get a bit tongue-in-cheek, file sharing services don't pirate things, people pirate things. A small operation like them couldn't out-litigate the big money lawyers of the RIAA, though.