That's part of what makes it fast!
Funny. Are you saying this is a cosmetic bug?
The fast color corrector doesn't have many options because these simplifications make it easier to use than the complicated correctors, and by having less parameters is more efficient to render. For something similar, but with secondaries, the master wheel of the three way corrector is pretty close.
The Three-way Color Corrector Master wheel does not work the same way as the Fast Color Corrector color wheel. I think the Three-way Color Corrector Master control, overall, doesn't work properly. Try the following:
1) In the Three-way Color Corrector, select the Master Tonal Range and reduce Saturation to 0. There is still plenty of color information present.
2) With the Master Tonal Range selected, drag the Master Balance Magnitude to 100 degrees (keeping the Master Balance Gain at its default 20). Do the same with the Fast Color Corrector (using the same Balance Angle) and note how differently they behave. The Fast Color Corrector changes hue over all luminance levels. The Three-way Color Corrector Master control adjusts hue over what appears to be a sub-set of full luminance.
One other color wheel characteristic that I find confounding:
In most color wheels, 0 degrees is Red, 120 is Green, and 240 is blue. The numeric values increase counter-clockwise. OK, that is the norm. So why is it that with P Pro color wheels, Red is -110 degrees, Green is 130, and blue is 10? Or...looking at compass points: on the P Pro Color wheel, North is -90 degrees, East is minus or plus 0 degrees, South is 90, West is minus or plus 180?