The game is unfortunately softlockable in the current state, as you found out, as there's no lose condition.
I wanted to add failure narration for such cases, but ran out of time to do all the necessary checks. (e.g. "The peeps didn't think of the long-term consequences, and wasted all the precious resources gathered.")
Each level you have to build the specific buildings to progress the story. But the game doesn't prevent you from building farm/farm/farm instead of farm/lumberyard/mine, for example, so you can run out of the necessary resources to progress.
There is a cheat button in the controls ([Enter] adds +1+1+1 resources) for this scenario if you want to just listen to the tiny story.