I've been wanting to write this episode, or something like this episode, for quite a long time. The idea is best summarized as Star Trek's Prime Directive, from the perspective of the "primitive" civilization, and it's an idea that I've really wanted to find a way to explore in a story. So I put it into a plot in my initial outlining of the Blood Magic second season, and have been looking forward to the chance to write it ever since. That's probably why it ended up being so difficult to write.
In philosophy, there is a concept called moral relativism. It was particularly popular in the mid-twentieth century, but has fallen out of favor in many circles today. Aristotle's famous question - "is conduct right because the gods demand it, or do the gods demand it because it is right" - is answered in moral relativism with a resounding no, to both alternatives. Instead, moral relativism asserts that conduct is right so long as it is in keeping with the conventions of the culture within that conduct takes place, and conduct should only be judged within that context.