I suppose that, with each release, Matt Pond PA sounds more redundant and tired. This has less to do with the subject matter than it does with the execution. The newest Matt Pond PA album, doesn't explore any new musical territory than any previous album.
This does give the band a comfortable lived-in feeling; timeless pop music with sing-along words. But you'd have to be a dedicated fan to really put up with them for more than two or three albums.
Still, redundancy notwithstanding, there is always one or two gems on every new release.