I have no problem with the "fairy shit" except insofar as there are some really dark white/European supremacist underpinnings to the Waldorf pedagogy. Also some weird quasi-spiritual stuff. This BBC article goes into some detail:
http://www.bbc.com/news/education-28646118
Montessori schools can also be a little cultish, or at the very least a little inflexible to the ways in which the world has changed over the past century. However, it doesn't have any of the white supremacist nonsense, and different schools interpret the pedagogy with more or less flexibility.