The point of this article is to inform people that Halloween is a day designed to draw people away from God by leading them to thought patterns and ideas that God abhors. It's ulitmate intent is to build love toward God and others by showing them that God has a plan and a way of life that leads to true happiness and contentment.
Getting offended at God because he expects obedience is like a child getting mad at his parents because they tell him that he can't have candy till he finishes supper. It's childish behavior.
All it does is create fear and doubt where none existed before, and where there is no reason for there to be any. Whatever Halloween was is long gone. All the article is doing is trying to resurrect a boogie man.