I could almost understand this argument when Microsoft started abandoning ClearType, although somewhat later, with the Metro user interface, with the explanation that tablets could be rotated freely and the layout had to be continuously re-adjusted.
Apart from that, only once in my life I've encountered a non-RGB LCD monitor: it had a BGR arrangement. With the default ClearType settings, text looked blurry and edges exhibited horrible color aberration. I think no one else ever understood what was wrong with it, so it was mostly relegated to a closet. Shame on you, Philips: there was no reason at all to pick an inverted order for your subpixels.
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Now that I remember, Sharp also did something funky on its Aquos TVs: they had a fourth, yellow subpixel. ClearType only ever supported R, G and B, so it would have worked poorly on them. I don't think many people ever tried to use them as PC monitors with 4:4:4 chroma to notice, though.