Its important to understand the difference between what a theatrical print would have looked like, versus what it looked like in real life.

Theatrical prints of the era were not true to real life colors and contrast. IE, the overblown whites, crushed blacks, and the 'warm' color palette. A good example of this is the Bu Ray set of The Godfather trilogy. The Blu Ray set was deliberately made to look exactly like the theatrical prints.

So, the color correction here is accurate to the theatrical look, but not to real life.