I have to agree, as a newbie to archery hunting, I am focusing on form, skill and lots of practice. A little later in the spring, I will extend the learning to broadheads and arrow penetration.
I figure if I can't hit what I am aiming at EVERY time, I have no business flinging sticks at an animal that deserves my respect. I compare it to guys hunting with large caliber guns that can't hit a 6" pie plate at 100 yds. It doesn't matter how hard you hit an animal, if it is in a non-kill zone, suffering ensues and we get a bad reputation.
Learn the craft, shoot enough arrow to complete the job. Enjoy Dinner.