Isn't that the point of recording new music?
In other news, this is a band I've always wanted to like based on the recordings but their life show was such a snoozefest
It's not always. I think he was just remarking on the success with which they've progressed as musicians/writers while maintaining a signature Alt-J sound.
And I sadly agree about the live show... I've never seen them, but all the videos I've seen are 60/40 misses.