The angle currently is the opposite. They're positing that the machine has some sort of spirit - see the other poster talking about "unexplained emergent intelligence".
Saying we don’t understand why LLMs are intelligent is both true and completely unrelated to religion. You inserted the word “spirit” so perhaps you are the one conflating the two.
Well it's sort of true in that people stick these LLMs together and they produce intelligent seeming outputs in ways that the people building them don't fully understand. Kind of like how evolution stuck a bunch of biological neurons together without needing to fully understand how it works.