I just saw it for the first time. Started binge watching, because it was interesting and enlightening on many myths, urban legends, etc...
However, respectfully, there was one that they were wrong about. The rise in satanism DID happen. Yeah, I know I live out in the country, on a farm, and went to a very small school. That actually proves my point though.
In the late eighties/mid nineties, the Midwest area I lived in saw it first hand. Several of the kids I went to school with went missing and were later found, if they were found, mutilated beyond recognition, laden with satanic symbols carved in what was left of them. We were not allowed to be out after dark for some time, and not even in the daytime by ourselves. Oddly, many of us have blocks of time none of us can remember. What we saw was bad enough. I can't imagine what we blocked out.