I'd wager on intentional.
Withes aren't really flexible. I'd even like seeing withes needing some water if re-using them.
But the game allows them to be used with small and big deadfall traps. Bear deadfall needs rope now.But all of the deadfall traps should utilize their tying material for the frame, not on active part.
Light lever trap can get even arctic fox. But they're not as portable as loop snares. 0.5lbs vs 64.6lbs LOL
When a nomadic character migrates to new spot, I tend to go kick the traps and leave any baits used. Roleplay it as getting/keeping the critters comfortable with the structure, same as baiting non-set cage traps IRL, before hunting season.