Actually it was pretty scary wasn't it? You had that ritual of killing someone made famous in our day by the short story "The Lottery". Killing a sacrifice, usually the strongest and handsomemest man in the village, to promote good crops, is pretty Baal worshipping, and not ordained in anything God said.
That movie "The Wickerman" is just a pun on "Wicca man" don't you think?
No,
Actually the 'wicker' man was a large wooden/wicker framework for burning someone as a sacrifice..... ie, Pyre on the outside.