Sorry I been away for so long... I'm resolving to come back and comment a bit more now that my schedule has cleared up a bit, since I've been an avid listener of all three 'casts ever since.
At any rate, I'm afraid that I really didn't have much fun with this one for a couple reasons. Firstly, the work strongly struck me as an enzymologist who came across an interesting, rather highly technical concept and built a story around it. There's nothing wrong with that, I actually prefer to have a higher hard science quotient in my science fiction, so I don't even mind the detailed descriptions of the technical aspects. The problem is that too much work was done perfecting the science, and not enough mastering the rest of the storytelling tools. Many of the character interactions felt clunky and forced, bluntly delivering character development ("he realized he still cared for her"), and handing off cliche'd moments at every turn, rather than implying shifts in mood or tension. The story was constructed in individual blocks that were stacked next to one another and didn't flow from sequence to sequence well. Although the crisis point was appropriately foreshadowed, the mood of the piece felt scattered, and the listener is left wondering at the stupidity of the "grunts" who demand more food without having even the suggestion of an alternate long-term plan to keep everyone fed. Had there been a few notes about hunger driving the "grunt" population to delirium, thereby excusing seeming nonsensical demands, this would have made more sense (although then the problem of the colony surviving for another few months becomes exacerbated). Thus the first problem is one of balance, too heavy on the science without appropriate balance on the characters and plot.
The second difficulty I had was in the way this particular story fell on the ear. While Paul Haring did well with a difficult piece in most respects, I would strongly suggest that he look up pronunciation on the more common of the technical terms. For someone in a science field "spectro-photo-meter" (spectro-pho-tahmeter)and "sally-silate" (sal-eh-silate) clang off the ear rather painfully and kept pulling me out of the story. (I comment only in the hopes of helping improvement, not to be mean.)