You know, Prudence, I'm now wondering if I read about that theory on the Flornoy site rather than from your post because they mention the confinement of card makers. Shame on me for not remembering where I read that.
I have the hand colored Noblet majors but have not yet ordered the full deck. I really must do that soon, because from the individual cards I have seen on the internet, that deck is gorgeous! The subtle color adjustments are phenomenal with the light blue moving toward grey and the muted yellow and red etc. (at least that's how it appears on my Mac screen). The clean, crisp perfection of the color fills is just amazing. Jean Claude and Roxanne are real perfectionists.
Did you happen to notice this quote in the review:
The “subliminal messages” conveyed by this coloring (very much on the minds of image makers, incidentally) are joined by two additional colors: light blue and flesh colored.
Guess I'm not the only one who obsesses over color issues!