The Ars Goetia clearly talks about SEEING demons when you summon them. Not “imagining” them, not “astral projecting” their form, not playing make-believe with your own head. Yet modern occultists keep pushing this nonsense about “visualizing” or “inner conversations” with spirits, which is outright cope.
So there are only two possibilities:

-They don’t want to deal with us anymore since medieval times, probably because nowadays there’s a higher risk of being recorded or properly documented and henceforth bothered by too many people.

-It was all fake from the start.