I tend to think many accurate light weight guns are too often thought of and written about in terms of bench accuracy at the range - that’s what sells. Just going from 8-1/2 lbs to 7-1/2 lbs requires much more attention to shoot well, both over a pack or supported with flesh and bones, but it’s manageable. My 1/2 moa gun could be shot just as accurately with a 2 lb stock or 16 oz version, but shedding that pound ment everything, especially trigger control, had to be done well. Personally I wouldn’t be interested in a rifle under 7 lbs because for me it gives up too much in field accuracy - shooters are all different and someone who is naturally quite steady and puts in practice time could go lower, and a cousin of mine is naturally more shaky than average and a normal 8–1/2 lb gun is almost too light.
I don’t think it’s a coincidence that sales of extra light triggers is way up - if someone has poor trigger technique and a light gun, the easiest way to decrease group size is a trigger so light it’s unsafe for hunting.