His book and teaching method are all about learning to work with colors through direct experience. To that end, he made students do numerous small projects with colored paper, etc.
(Have you read Albers’s book? I would definitely recommend it, with the proviso that you actually try to do Albers’s recommended exercises, which are really the important part of the book, instead of worrying too much about the text. Reading Albers’s book straight through is like reading a math textbook straight through without doing the problems.)
If you want to call Itten out for nonsensical babble though, go right ahead.
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Edit: here’s Dorothea Jameson’s response to Alan Lee http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.470...