Exactly. I’d say there’s an interplay between potency/fertility in a very broad sense. Consider, for example, Hades’ statement that “nothing grows here” alongside Rumple’s genuine surprise/awe when he tells Belle “It happened.” This seems to have a lot to do with infertility as the lack of capacity to nurture new life: Charmings not being there for Neal, Rumple potentially not being able to beget and subsequently protect his child; Hades — a god, and hence literally a creature capable of poiesis, or world-making — incapable of engendering a world that can self-regenerate, and isn’t doomed to only decay.