I thought the lore of the Three Houses was something done for one conflict, but I didn't think it'd be picked up again for this episode. It goes to show that the overall established lore can become important or impact the setting and conflict our cast is in. The show did well in writing out the grief of the fairy, that the impact of the violence can still be felt and the cruelty of having a family history being erased. All the while, keeping multiple conflicts intertwined.