I would guess it's because there's just way too much garbage in occult works. Word on the street was that he studied the works of Aleister Crowley. This man wrote tons of stuff on occult theology, but a lot of it was flawed because the man never bothered to learn the languages he based his work on ~ and there are some who study Kabbalah, who still claim you don't have to even know Hebrew! It's a great pity because they would learn a thing or two. For instance, the Geburhim were a Hebrew army. The Nephalhim were not "giants" (Greek error), but were rather cross breeds - offspring of inter-marriage which, according to the Torah, was forbidden, even between the tribes of Israel itself (because it caused dissent among the people). In fact, that was the first written "prenuptial agreement" that was ever recorded. The Raphahim are also mentioned. People, for reasons unknown to me, have confused the common title, Bene Elohim (sons of God) with the Malakhim (Messengers), which the western world calls Angels.
Some of these mistranslations have even caused wars, such as the dispute between the Jews and the Muslims... it's so bad that I've even had to create a special program on my computer to keep track of them all. There's a lot of this sh*t going on and it's almost bordering on rediculous!
When you come of a certain age, you realise that there is no magic pill to swallow and knowledge comes from dedicated study, not some divine bolt of lightening. More importantly, these studies are a journey, and you need to allow yourself the TIME to enjoy that journey.
Maybe that's what went missing with some of these so-called authorities. They were so focused on the end, they missed a lot of sights that were on their way. There's quite a lot to take in if given enough time.
The Ninth Scribe