No, he said, “you can’t ask a shilah and you must report”. Then he said, “If you or your rabbi has trouble with that, you need to live somewhere other than New Jersey” (emphasis mine).
If he’ll explain that he meant as you say, I’ll accept it. However, I won’t agree that New Jersey should be without frum Jews, or that no Jews should be teachers or therapists (or whichever professions are mandated reporters).
It’s pretty far fetched to say that nobody should live in a state or take a profession in which you’re a mandated reporter because maybe you’ll know of suspected abuse and maybe you’ll be caught asking a shailah (or not reporting if that’s the teshuvah) and go to jail.