Artists have been singing about themselves since forever. Even when some of them are making political commentary, it's usually about something that directly affects them.
Not to mention, no one really wants the political opinions of most of today's popstars. Most of them start when they are barely out of school, let alone have great, mindful views about the world.
And wasn't there a rumor that he was working with Adele?

These statements would be very hypocritical.