This is the key section: "They remained available to the divine world to strengthen should the deities ever wish to do so. In a polytheistic context, this type of situation is alarming. It means that any deity of high or low rank, benevolent or malevolent, could energize any such latent curse whenever the moment suited."
Praise God that YHWH is the only one who can activate such things! And Praise God that he is benevolent! Otherwise we'd all be wearing good luck charms and checking the astrology charts and having our palms read and going through certain rituals that seemed to work the last time and...hmmm...doesn't that sound familiar? Or have I gone to meddling now?