What happens when a surprising pleasure becomes clinical?
A larger problem is that the more ASMR tries to establish itself as a "real thing," by summoning science and culture to establish its basis, the more it's going to become reduced to a brain condition rather than an existential one. And the more it's conceived of as a biological phenomenon, the more it really will come to resemble porn, albeit a type that happens to end not with a bang, but with a whisper.
But I think many in the community will agree with me that ASMR isn't just about finding what triggers the tingles. The meaning of the activities is (or at least was) important. There's a reason many people prefer videos that aren't made consciously as ASMR videos to ones designed specifically to trigger the feeling.
One of the biggest reasons for the backlash toward ASMRotica is that ASMR is often described as a sensation from childhood, and mixing it with sexuality seems to spoil the innocence of it. Of course, proponents of ASMRotica say what they're offering is not a debasement of ASMR, but a more wholesome form of porn: porn "with love." But can love be transmitted through a screen by a stranger to a stranger? Or, if it can, what happens if it does so in a way more stimulating than most people experience in "real life"?