I think that the reasons people don't want the arrow to pass thru.

1. If the arrow doesn't pass thru.....the bird has a harder time flying away. It's kinda hard to blood track a bird that is flying.

2. I want my bow set on a lower poundage for turkey hunting.....so I can hold it longer on the draw.

So....for turkey hunting....I'll take a "wallop" from a lower poundage bow over a "zip-thru". Of course.....the only one I killed witht he bow was a pass-thru......but that would NOT be my preference.