Oh I agree...we shouldn’t jump to conclusions...but, as I posted above, another inconsistency. I can understand that parents themselves may delay the filing (by not having a name ready). Again...just another speculation to discuss.
Also possible...don’t you usually fill out a form when your baby is born, providing the name you chose? and give it to the nurse, who then files it, the Lord knows where...and maybe 0bama’s nurse delayed a day in sending the completed paperwork to the registrar.
My own birth certificate was not filed for about a month after I was born. (Long story, not really interesting.)