It presupposes no such thing. It only has to specifically and directly do with SOCE. That's not "every time a child suffers from their parents choices." Just as every case against parental negligence of Christian Scientists is not presupposing that "every time a child suffers from their parents choices [the law] has been violated."
I agree that parents should be able to make choices, even mistaken and bad ones, but there is clearly a limit as I have said and the limit is already to be found in some laws (physical abuse, negligence, etc.). I repeat that in this case we are observing another of these limits.