Mr Rudolph Steiner is a new proponent of old knowledge, but if he says what you are saying, it lacks the authority of the old ways - which puts it in the same relationship as the Wickan religion to the wise women at the edge of the forest and their traditional knowledge.
Right or wrong is a call made after experience with judgement.
Old ways vs recently invented is a fact.
With no other knowledge of him than this thread, I'd suggest be careful in passing on the words of Mr. Steiner.
By that I mean, find what works for you and as several great teachers and scientists have said, if you experiment and find out it doesn't work, reject that teaching.