Doesn't the society use the proposal about her just sacrificing her right to have a family
yes they believe she sacrificed her freedom in exchange to hang out at the temple doing temple stuff ala someone who goes to work at bethel for life. But if you read it in context its saying she was sacrificed, not sent to be a templite.
Another example of witnesses making an explanation (even if they pull it out of their ass) that will support their beliefs. Not what is really in history or the dumb bible.