Why does her fathers' opinion matter in this?
You've seen my opinions before, and know that I'm a firm believer in separating church from any government entity, but this situation is almost as if you were the judge. You've decided with practically no information that because her husband and father don't like her church that she's a lunatic, the truth is you've injected your bias into the case and declared her guilty of mentally unfit. From what I've read she's the custodial parent, and apparently the more mature parent, therefore she should be the one to decide the schooling. If the father is worried about the kid's development, he should give up some of his time to correct the deficiencies. He's apparently decided to pass this on to a government babysitter.