Gah. It’s been 40 years everyone. Let’s agree to stop using the CIE 1931 (x, y) chromaticity diagram, which is horribly misleading, in favor of the CIE 1976 UCS (u', v') chromaticity diagram. [I would replace all the diagrams on Wikipedia myself, but it would take several days of effort, and probably a few weeks’ slog of talk page arguments.] The difference between these two color spaces is much less extreme than the xy chart makes it look.
I don't know enough about colour perception to argue the merits of one diagram vs. another, but am I incorrect in my assessment of what colours are entering the gamut (lots of green, a bit of red, not much blue at all)?
Sort of. The green area is not nearly as dramatically different as the xy diagram makes it seem, while the red and blue areas will appear more different in the u'v' diagram. (Of course, chromaticity diagrams in general aren’t a perfect tool.) The “Gah” is directed at Wikipedia, not at you.
I'm pretty sure most of Wikipedia editing is automated (by volume), see, e.g. ClueBot. That said, if you don't get consensus to make such bulk changes, it will probably not go over well.
