"How was the hunting"
"I run into a large herd along the road, I got 20 Tefusangs and 4 Marfusangs before running out of arrows"
"Good, you must have brought a lot of stuff then"
"I have 4 Tefusangs Claws, 7 skins, 5 teeth and a Marfusang hearth"
"Well if mathematics are right... where is all the rest?"
"It... disappeared. Half of those beast had nothing to loot"
"I see... it must be some magical equilibrium broken again, maybe something called RNG"
Seriously, doesn't seem rather unreasonable that half of the times they give no loot? 9 Tefusangs over 20 gave nothing (some others gave multiple items) and also 3/4 Marfusangs, which are still hard to kill for my hunter.
A beast hunted with bow and arrows that was alive until few seconds before, why shouldn't it reliably give most of its parts? I can agree on not giving everything everytime, an organ may be too damaged, but this way is rather unpleasant.
A medieval hunter went after a hard or dangerous prey because he knew that he would have been rewarded by all the prey had to offer.