Thinking back to the "bug pony" dream from "Bloom and Gloom", the episode missed an opportunity to expand on the implication of a moral that I've wanted to see in this series for a while.
The moral would have been that every role is important, no matter how small or desirable, and it was implied when the town fell apart as a result of the twittermite attack. However, that point is dropped as the plot of the episode rolls on.