Most of the time this will however result in a burned out sky.
I second your request. On the other side the burned out sky could be catched by an enhanced color mapping. Maybe the ground/sky relation is physical correct, but without a good "viewing device" like the human eye the result will be like you described. Other engines provide the main parameters burn/exposure/contrast to get it job done. The burn control is missed at Enscape.
Very much I like the curve control of the V-Ray frame buffer which allow me to simulate an anlog film curve based on a very long flat upper curve end like in this extreme example here.