I guess I just have to wonder why are there "warnings" associated with the "magic"? I mean if it's an idea that your mind has the power to will things outside of your body then sorry that's mumbo jumbo to me.
it is all "mumbo jumbo".
I would suggest that you do not know
this to be true.
Satanism asks you to stop believing things long enough to find out what is actually true.
Most people simply believe what they are told and look to authority figures to pronounce what is real.
Additionally you are truly beating a dead horse here as you can be a happily practicing Satanist and never
perform any acts of ritual magic.
So you do not even have to challenge your belief
that magic is "mumbo jumbo" to be a Satanist.
But you will not get very far disputing others who have
taken the trouble to challenge their own former beliefs and have drawn different conclusions.