I guess it depends on your definition of religion. To me, it sounds like a personal religion, even if just one person believes in it. There are any number of religions too small to be included in their list, probably, so they should have an “Other” option, and that seems like the best fit for someone who has a personal set of religious beliefs that do not align with a listed religion.
The real question is, are they fixing the faulty proximity sensor? I’m definitely never buying a pixel again until they take care of that.
Not to mention that I’m not buying any with a selfie cam marring the screen shape, but that criticism applies to almost all phones.