Honestly it sounds like someone has watched to many Rage broadhead commercials. Archery has evolved over many millennia (examples of primitive bows have been dated up to 7000 BC so far) and many types of archery tackle derivatives have been perfected. Obviously some designs were more efficient than others but all were designed to kill prey and or enemies. The effectiveness of the weapon has a lot to do with the skill of the bowyer and the archer as far as design and accuracy. You could have the best bow in the world but if you don't practice you will never realize the potential of the weapon. I would say that modern equipment is easier to be proficient with much less effort, however, killing prey is by no means diminished with a primitive style bow other than typically less range which is probably a result of less practice time in the modern era.