I don't think there are any "maybes" when it comes to Biden's religion. He might attend the NO Mass but he's no Catholic. Anyone who supports abortion and sodomite "marriages" is definitely out of communion with the Catholic Church. Anyway, this lack of referencing God is no surprise. The Democrats have been removing references to Him for a while now. I remember a few years ago, when there was a huge stir as they took out a meager reference to God in their platform, then haphazardly added it back after some backlash. I'm guessing we're past the point as a society where Biden will face any serious backlash over this omission. The Ministry of State Propaganda, formerly known as the independent mainstream news media, probably won't report this and if it does, it'll whitewash it under the banner of inclusion and diversity.