Doesn't the "it's bad for kids to read before 7" come from the Waldorf Method? At least in part?

I recall when I was researching what kind of homeschoolers we should be that this odd bit of "wisdom" seemed to be coming from Waldorf.

I know Waldorf practitioners don't each reading until age 7, and at least some schools actively discourage kids under 7 from reading, even going as far as to chastise parents if the kids read before that.

I think the foundation of the Waldorf method is words--mainly through talking and playing. But reading "early" (before 7) is not encouraged.

Kriston