You can, of course, analyze the classical piece that The Witches of Eastwick (1987, George Miller) is as a tale of seduction and revenge. But that's by far to easy... there's so much nuance in this + the perfect ending.
As I've claimed before, love interest, romance and passionate affairs can be - and often are, especially in cinema - the vehicles of empowerment and emancipation. This narrative can be rather predictable and slightly overused, but, hey, if the authors know how to show that it's not the man that has to be central to one's life in order to transform but an relationship offering an alternative mode of doing things that has a capacity to change people. Can be friendships. And can be romance. See examples here, here, here among many more.
Yes, it is a heteropatriarchal way of constructing female emancipation. But better this than none, provided that the protagonists know what they are doing!
And The Witches... offer much more than just emancipation via Jack Nicholson.
You get the friendship that's prior to scandal and that remains afterwards. You get sexual emancipation based in pleasure and indulgence in bodies. You get creativity and playfulness. And you get the healthy realization that some things have gone too far and have to be gotten rid of.
It's a John Updike novel after all.