I addressed your point, gavra. They specifically chose the most densely Orthodox populated areas, specifically with the intent because those areas are densely Orthodox without them overly affecting non-Orthodox customers. The other towns you cited are less densely Orthodox and have a larger percentage of a non-Orthodox/non-Jewish population.
Passaic? Not even close.
Any judge looking at the list of towns will immediately notice it is specifically targeting Orthodox Jews.
A specific subset, while not targeting other similar Orthodox Jews. Not illegal. That’s even if they specifically targeted Orthodox Jews, vs. specific ZIP Codes irrespective of religion (which would certainly be allowed).