It’s relevant if you’re concerned about being machmir per Rav Moshe, as a bal nefesh would eat only a cholov yisroel Hershey Bar if it were available and all things were equal. In this case, the bal nefesh chumra does not apply as there are no Hershey Bars made with cholav yisroel milk.
So in your opinion, not having Hershey’s is a shas had’chak?
Wrong.
Why?