I wonder if they might just be completely out of, or dangerously low on, "interesting" vocal tracks.
I'm not trying to bitch here - I haven't even listened to the album yet. But, the band clearly knows that big parts of the fanbase that listens to this sort of stuff are unhappy with getting instrumentals, and the instrumental portion of the LPU albums grows every year. Maybe they're holding themselves to a bad standard with this need to release all demos every year.
I know that that was probably a direct response to "WE DON'T WANT FUCKING LIVE TRACKS" from these same people six years ago, but I think most would appreciate some live tracks from the vault, if they have any, which they surely do. Maybe a 60/40 demo/live split, or something like that.
I dunno. It kind of feels to me that they're starting to hit the bottom of the barrel - not in regards to quality, per se, but in terms of things they actually want to release.
But maybe I'll feel completely differently when I get around to listening. Who knows.