I mean, perhaps in the most general sense that is technically true. For example, there have been cases about this that have come from parents taking pictures of their kids in the bathtub, even if the charges were eventually dropped. If that particular court case had gone differently, it might've set a very destructive precedent that served only to rip apart families.
Still, 99% of the cases that produce this material are done so in an exploitative and abusive context; definitely not arguing with that. No idea what Aaron was talking about in that particular link, but this is the one counterexample that I think of that is valid, assuming it went a different direction in court.