All I think when I see that is : isnt that assuming you're actually hitting the turkey in the head/neck? Otherwise, all you have is turkey-burger .
I know at least some of them are designed so even a near miss (by the shaft/point) will decapitate the bird.
Never been turkey hunting, though that was awesome. The birds didn't suffer and that is one of the keys to me hunting. I hate sloppy hunters. From what I saw that arrow is great. The last one was happy go lucky then bang. Never knew what hit it. Now, we have to practice on something bigger to find the usefulness of these arrows on other than turkey.