Let me start with: This is not a discussion of the validity of the Bible or whether it is inspired of God.
My question is why do you think they don't use Grace in their teachings when this is such paramount teaching in the rest of the Christian world.
And why do they not reference the Hebrew word for Helper in Genesis 'Ezer'. This word as applied to a woman seems more dignified as it carries the connotation of strength where the man is weak.
What ever your belief system, these 2 words would actually make their teachings more appealing and give more respect to the woman.