It was a study of the origins of various religions which eventually got me out of them. I never saw this video before, but I liked it very much. I agree with much of the evidence that she is presenting, which also agrees with much of what I remember from my own studies. I also think she looks good doing it.
If you know anything about Mormonism, they have taken a step back towards polytheism. Many of the beliefs currently held by the Mormons are closer to the polytheistic origins of Judaism. Specifically they believe in a mother goddess who is a consort of the Father, though they don't typically name her or worship her in any way. I was Mormon for some time so it may come out in comments.
It's an interesting topic of discussion that has given me a desire to study further into Anthropology, Philosophy, and Religion.