Not so sure this is a new topic, i seem to recall questioning it a couple of years ago, i have found that using textures is far more accurate than colors, here are 2 images, 1 a screenshot the other a render.

and this is a Q4 render

not only does the red change to pink but it also shows how different objects color differently, the I beams are rooms and the roller support brackets are box's, both have the same color applied to them.
Mike