This could improve chromatic adaptation of captured images. In other words, better results when changing the white point.

Funny enough, that’s what photographers are doing when they shoot a color checker chart (e.g., Munsell, Macbeth, X-Rite).

White balance is hard, in part, because the sensitivity bands of our vision and the camera sensors do not align. Take a look at fluorescent (or, better still, sodium vapor) light spectra for clarity on why this is a massive pain.