So my purpose built 'above tree line rifle' will be light and balanced enough to be in my hands at elev just in case I have to make that fast 'never intended offhand shot with heart pounding and ears roaring with bull fever and adrenaline.
That is exactly the situation that I think about when I am elk hunting in the dark timber where the grizzly bears like to nap during the day! My rifle weight in such situations has to be light enough that I can carry it in my hand pretty much all day long!
Most people do not have that as a consideration, but for me it is a primary requirement.
Hunting in more open, and less dangerous, country would be different.