Yes, I've known this for quite a while. Some releases are months or years old. I imagine it became obvious to Tom at some point that 2 new songs a week was a rather relentless schedule for The FuMP, so much so that Rob Balder even wrote a Worm Quartet parody about said schedule (I'm Gonna Procrastinate).
Eventually, enough was enough and album tracks & other previously released material got the green light.