Actually, I do think the reason Steiner Kindys don't teach reading is because children may learn better later on, and have the opportunity more fully to develop their imagination.
Every education system is based on some metaphysical belief system, whether it be genetic randomness, blank slate, incarnation, or any of a million other perspectives. Furthermore, I can't imagine there is a modern school or education theory that does not have the best interests of children at heart.
Education practices therefore must be judged on their success and merits, and their suitability to individual children and their families.
I suppose this thread of positive descriptions of Steiner experiences is finished . . . shame, I would have been interested to hear what other people felt worked well. Of the 18 posts here, only three provide descriptions of what happens in their child's school, and one of those is mine. I am envious that AlderTree has a local progressive state nursery, it sounds like a wonderful option to have.