They mention that Warner Music is also Metallica's label, but in my opinion this would probably not factor into a business decision to purchase a record label. Warner is a huge label, and in many ways has not adapted to modern times. If Sean were to purchase Warner, I can't imagine him allowing the label to continue operating as it has. Maybe he would shape it in way which would be more appealing to how people wish to consume music. Who knows, maybe even music start ups will have a much easier time with legal problems and costs? That would be cool.