Some are and some aren’t.
A maternal feminist is likely to be an adherent of a belief system that explicitly recognizes a Divine Feminine deity or higher self associated ideal or optimal feminine archetype. There are however many maternal feminists in monotheistic or abrahamic systems who reject the misogynist dogma within it, and interpret their systems in egalitarian terms.
On the other hand, there are some religious people who are adhering to misogynistic views while calling themselves maternal feminists. You can tell who is who by whether or not they get the basic principles of maternal feminism.
If they are anti abortion but not anti slavery enough to understand that access to abortion needs to be a legal right, then that is a phony. It can be their opinion that abortion is a tragedy or even a sin, but that legally, it should be available for the same reason use of lethal force to prevent someone from kidnapping you is legal. It can be their opinion that their religion is a wonderful means of spiritual expression, but the moment they want to legally enforce their religion on others, they are no longer representing maternal feminism.