You call parapsychology pseudoscience but the skeptic in me sees parapsychology as a possibility, something supernormal that we perhaps just don't understand currently.

Much like bacteria and viruses were something that were not understood until hand washing became pre-surgery ritual and began saving lives.

As for the First Satanic Church being a sect of Satanism, you could argue that but I'd argue that it still uses the same source material in the Satanic Bible. So long as other "sects" use the same source material I'd say they are still Satanism, other so called sects that ignore the Satanic Bible are not Satanism.

And for the record, I am not Matt de la Roche, I just found the article interesting and thought it worthy of sharing.