So I struggle to see the difference, here are two specific questions that I think would help me, but if I am asking the wrong questions then go whichever direction it needs to go.
1. What are the source of their abilities?
2. What is it that they revere/worship?
My in game guess currently. The druids chiefly revere nature as a whole, therefore in the time of their persecution they could flee high rock because nature is all over.
The weird sisters chiefly revere the Ehlnofey, which means they must stay put because their giant tree Ehlnofey couldn’t fit in their back packs.
My OOC theory is that the sisters were meant to fulfill the Breton Druid lore and you guys gave hell insisting they weren’t druids and so the druids were eventually added, thus making two groups where there was one. But what do I know? 😁🤷♂️