Sorry but that’s just not true, there are measurable effects on the brain from “normal” use of porn, there are many studies on this. NoFap isn’t just about masturbation, it’s about the way porn tricks and damages the brain.
Masturbation without porn and without craving for the last bit of porn you saw is going to be dramatically different to the kind many people engage in, which is harmful in most other areas of life as well, so it makes sense it would be with magick.
It has nothing to do with Christianity, nothing like sissy hypnosis or rosebud porn even existed back then. Porn is becoming warped as well and steered down very definite routes, for example almost all femdom porn now is actually cuckold porn, with chastity devices and even castration being promoted. 