They are unbalanced in interloper. I think they were made to force people to use fire arms on them (Bleak Inlet > crafting ammunitions > Timberwolf). Just speculating of course, but when you aim at them with bow, they run away and come back asap. Very hard ton aim correctly with bow, so that s why they were made to let people spend ammunitons on them (imo).
But how do you kill them without wasting 8 or 10 arrows in interloper? (not even talking about the fact you will probably lose some health at least in the fight, except if well protected before the assault).