This depends on the context of the building inwhich we are disscussing. The general rule is to have water on the fire floor. You are correct and won't get an argument from me about stretching dry in a fire resistive building, say a Multiple Dwelling if condition allow. (Like the door to the fire apartment being closed). We can in this instants stretch dry right to the door of the fire apartment. The building's constuction and fire safety features allows us to do this in a safe mannor.
We never stretch dry above the fire. We don't stretch dry into a house with the basement on fire. That line is charged at the door. It's a hard stretch looking for cellar stair with a charged line with smoke and heat. We have this line charged for the same reasons we should have it charged on the fire floor in most cases, our safety until we reach the fire for extingishment.
There are no absolutes in this business, and I do think I get where you are coming from. For me, in general terms. Stretching dry on the fire floor is a hard sell.