Weight matters very little to me. Much more important to me are the handling characteristics. I have sub-5 lb. guns that handle like 6 1/2 lb. game guns, and 9 lb.+ doubles that are as quick as many 7 lb. guns.
MOI is much more important to me than weight.
SRH
Concur, overall weight is part of it, but the balance or better put as you have MOI is the dominant concern.
Come hunt with me sometime.
One does not have to give up MOI, or whatever acronym you wish to choose, to use a light gun. And the end of the day, a long day, in heavy cover, maybe snow, lots of cold and wind, a light gun is appreciated. And strangely, they can kill pretty well.
Everything is a trade off and the balance of that trade off is subject to a given set of circumstances.