just think, most of the ultralightweight phenom came from hiking on GROOMED trails and from point to piont to point to point. Like the AT, the PCT and others. On these trails gear can be babied way up to a point.
Lewis/Clarke probably did a lot more bushwacking which would kill todays gramweenie gear.
I've embraced one thing from the past ==wool, even though Smartwool is probably modernized wool.
As far as weight I've gone the gamut and am actually carrying the heaviest pack now in over 36 years...3.2 pounds for the pack alone. I've decided it's not so much the weight of the pack but what I put in it.
I do my share of bushwhacking/bushcrafting too but then it's a totally different goal and gear choice. The breathable Mountain Hardware gets subbed out with an Empire Canvas Works Long Field Coat; the GG pack gets subbed out with a Snugpak Sleaka and even more rudimentary gear than what I'd use on the groomed trails but gear that is to be used to craft/build and for a place I plan to stay at for a while.
The hammock can and is used in both of these worlds but for a long term bushcraft experience I realize the lightweight hammocks for backpacking are quite ephemeral