I don't know. But the real Pedo-sadists don't have a god. And the Dark Goddess for some traditions is the one who destroys evil.
So?
But honestly, the people in this cult don't seem too smart. They are likely mis-appropriating and creating their own "evil deity" for control of their own followers. To get them to do sacrifices - for trauma mind-control.
But really they don't worship any Goddess. It 's power BS. They want , themselves , to be God. So they destroy or pervert the Idol of God. Put themselves in that place while "doing what they wilt" which is likely 100% disgusting and unimaginable to good people - you know , the people they despise and deplore.
They can't help it that they are demonic?