To be overly pedantic, and not to take away from your point, but it's slightly more complicated than that.

Wet plates, dry plates, and early film (common film) saw only blue light. This meant that the sky, from the film's point of view, was always very bright. Getting a picture where the sky contrasted with the clouds almost always required a different exposure than that needed to get the stuff on the ground exposed. Many photographers kept a library of sky photos so they could swap in the sky of their choosing.

Orthochromatic films, introduced late in the 19th century, saw green and blue light, and taking a picture of the sky became somewhat easier. Panchromatic film sees red, green, and blue light, but all these films tend to be more sensitive to blue light than the human eye. Evolution has tailored the human eye to be most sensitive at the wavelengths of light most abundantly produced by the Sun. With panchromatic film, and to a lesser extent orthochromatic film, you can balance the film to something closer to human vision through the use of colored filters.

When I first got my hands on a Speed Graphic as a kid, I used to buy orthochromatic film for it because it was less expensive than panchromatic. Given my skill level, I might have done about as well with no film at all, but that's another story.