More On the 9th Circuit Parental Rights Decision

This article articulates further concerns that the court's decision will lead to other rulings compromising the rights of parents to raise their children as they see fit.

One of the sentences in the opinion which causes the greatest concern: "...parents have no due process or privacy right to override the determinations of public schools as to the information to which their children will be exposed..."

This causes me to wonder, would it then logically follow that public schools no longer have to obtain parental permission slips for anything?