All he did was undo their false, meaning that it wasn't natural but caused by the Feds, belief in him being a god. Of course the underlying idea was that the Mintakans would regress if the incident sparkles a rebirth of a dying religious belief.
This is hardly anti-religious though as our own religious history implies a progress from paganism to monotheism to atheism. Take Christianity (which is basically the step from monotheism to atheism, God dies in the Jesus story) and the partial re-paganization of it once it came under Roman influence. I am not anti-religious when I call this a regression.