This faction has simple mechanics that are well thought out, and tied together with a little bow of storytelling and thematics. I like it a lot! I especially love how you've given storytelling reasoning behind things that happen, then they're reflected on the decisions and actions that would be made during the course of a game!
I do think the ability berry for the shepherds is a little redundant, since your recruit and enlighten actions specifically mention the pieces placed. Besides if you craft propaganda bureau you could be seeing a cool mechanic you might not otherwise see! (Though maybe this is by design?)
Awesome work!