I think you are trying to hard to see patterns that aren't there. I would not be surprised if he at some point was involved with Alistair Crowley, and that his ideas of forming his own religion might have come from that meeting.
Hope you don't mind me asking, but are you a Christian? And if yes, too what degree would you say that you are a believer?
Hubbard was batshit. And that should have been the end of the story, but it isn't because he took his batshit ideas and implemented them into a system he could use to exploit others. And this is, I believe, where Crowley and his satanism might have had an influence. Being able to give people enough freedom to not immediately walk into the wall, but still keeping the firmly within the walls of his control.
Does Gold have a cave where they preform virgin sacrifices? No
Has Hubbard implemented ideas from those he interacted with? Oh, hell yes.
Now there are two more points to make. Firstly; The CoS doesn't want people to watch The Profit because it directly outlines their organisational structure and reasons for existance down to the finest detail. Including the insanity of its leaders. And it's a critical work towards the CoS, ofcourse they're going to treat it like heresy, haven't you studied up on their tactics?
Secondly; Quentin Hubbard later said that he made up a lot of the stuff that went into the Penthouse interview, but never specified what he made up.
The most important thing to learn about Life, the Universe, and Everything, is firstly; the answer is 42, and secondly; how utterly ridiculous it truly is