I don't think either the first or second revival were much driven by people's experience of folk music at school. Changes in education policy are many and varied but it's hard to see if they matter much.

It's not uncommon for people who want something to happen or to be supported to think "Lets get it into schools". I have witnessed teaching packs called:

White fish across the curriculum
Concrete across the curriculum
savings, investments, insurance and pensions for Infants!

I kid you not.

Folk was, is and I think will remain "alternative" perhaps we need to stress this side but keep it a bit of a secret?