It is fiction yes, but if it is lifelike enough does the difference matter? Even without the ick factor of making porn of someone without their consent, it would be so easy to destroy someone's career or relationship by making these deepfakes and then spreading them around. Especially once the tech gets more life-like and loses the current AI gen tells.

And the same would apply to doing this the old fashioned way in Photoshop, however you have to admit that taking it from "need special software and experience in using that software" to "just upload their image to a website and get back their AI generated nudes" is a huge change in how accessible this is.