Why would they put filler on an album they said they already had too much content for and paid for the recording of? Haha. You just dislike the songs, although I agree there are some weaker moments on here.
In most cases, bands don't choose to put filler on their records...it's the listeners that choose what comes off as filler and what doesn't, and of course I dislike the songs I think are filler haha. At least it's got less than WSYFM did, especially since that was a 10-track record.