What was the purpose for making the video?
Without knowing it's specific purpose...
I thought I was pretty clear in the first post, and with the graphics at the end of the video.
The text I read was from an essay that is included in a book I just published. The point was to give an example of something from the book that was entertaining and provocative. It's a promotional video.
Most of the video was NOT about Christianity, it was about egoism - self-interest above self-sacrifice. It does play off of the Christian myth, for the same reason that Satanism does - it's socially relevant. Most English speakers who hear it will, more likely than not, be able to understand the references. That is, as compared to if he wrote about the mental slavery of Mithraism.
Also of note is the fact that the text was written in 1898.