Does anyone recall some fanon notion from years back that tried to retroactively explain "The One" as some kind of 23rd-century humanist philosophy that had nothing to do with monotheism?
If some fans were trying to flip the meaning of "the one", it would be out of place with the entire point of Kirk's reply to Apollo, and ignoring characters who are believers, such as McCoy. This falls along the line of others who were desperately trying to explain the Christ / Son of God reference at the end of
"Bread and Circuses" as not having the meaning or intent for that world as believed by countless groups of people in this one.
NBC was not "forcing" Christianity on TOS, and I seriously doubt Desilu had a hand in the references appearing in stories, either. That would assume TOS was viewed as a show where the main characters are atheists (and/or pushing atheism), when there's no evidence of disbelief in aired episodes, other than McCoy's comment about Scotty from
"Who Mourns for Adonais"):
"Scotty doesn't believe in gods."
I also find the "forcing" or "pushing" kind of theory questionable in that another NBC series set in more relatable (read: then-current) times such as the popular
"I Dream of Jeannie" (1965-70) was never forced to push, imply the existence of or offer Christianity as a counter to the full-on use and belief in genie magic by any of the human characters. On a series where more overt mystical power was the order of the day (and again, set in a world/times that was similar to that lived by real people) yet was not adding any direct reference to God / Christ, et al., suggests NBC or broadcast standards was not going out of their way to prod the producers of a series not reaching a far greater number of homes, certainly more than a sci-fi series with ratings problems.