Maybe I could have been more elaborate in my comment. Fair enough.

The article claims that it's not bad teachers but bad teacher education.

I am following that line of singular reason and saying what I believe comes before that.

I made that comment in the context of discussions about childrens education which always focus on a bunch of other things than parents. (Better equipment, better teachers, better methods etc.) because I believe thats one of the most if not the most important reasons to get good education to the extent that something has to be chosen.

I am not buying the premise that education somehow becomes better if teachers becomes better or children gets better scores. Because I am not buying the premise that education in itself is the goal. It's only part of a much bigger perspective far beyond the reach of the educational system and later in life far beyond parents control.

So I stand by my claim that involved parents will itself make up for a lot of the things that are considered problems with education.