Yea Steiner is woo-woo but so what? Most people are woo-woo (religion) and perhaps old Rudolf realized it has some value in human development. The specific details of the woo hardly matter.
As I see it, the main values of Steiner are the close community and the not forcing them to do logical thinking in Piaget's preoperational stage (before 7 years old), which Rudolf seems to have interpreted as play-play-play all day-day-day, but that might be fine.