LOL
Ok OM, you feel a need to be "comfortably right", and I mean RIGHT.
Well come on man...you dont see them as witches? Of course they can claim they are using the force and all when it's in Star Wars, but that alone (the Force) places all of Star Wars squarely in the middle of the fantasy genre and absolutely none of what we see in Star Wars is science fiction. It is future-themed "swords and shields" material at it's core....like all of Star Wars. But this is not a bad thing, it just needs to be clearly stated.
If you had to use a word to describe what these women are in season 3 episode 13, what would it be? The only word that fits is "witches", dont you think?