Just thought I’d share this insight, as I didn’t quite “get it” before.
The Labor obstacles for “Hauling Items” isn’t for somehow bypassing inventory restrictions (that’s what “Carrying Extra Sacks” is for). It’s for moving heavy things from point A to point B. It’s not like you’re going to pick up a stone column and carry it around with you in the dungeon strapped to your back like something from Nodwick.
Of course, now that brings up another thought:
If the party hauls the load to the surface, do they need another check (by which I mean “skill check”, or “test”) to get it to town? I’m guessing not, in the “skip to the interesting bits” sense of things.
But what if they haul the load to the place where the stairs used to be and have to make a Dungeoneering test to climb up? Does that just make Dungeoneering really hard? Do they make a Dungeoneering test and then another Laborer test? Something else?