I'm not taking sides here on the broader issue, but until Bloodborne comes to other platforms, I couldn't give less of a fuck that something isn't coming to a Sony console.
Sony's somehow the least altruistic player on a field where altruism doesn't even exist. That 2013 E3 "you've got full rights to your games" thing was about as sincere as Nixon's "my dog Checkers" bullshit.