Well there sure is a lot to learn stewarch.
Do you know, if you look closely at tissue with unusual flexibility such as the heart when a bullet has passed close but not struck it, you can often see the precise effect of the 'shock' or pulse wave the bullet generated as it passed thru the animal in the form of rings of slightly more intense discolouration or damage, and you can actually learn a hell of a lot about how different bullet designs at different speeds have disrupted tissue they didn't strike? I saw a heart last year that was VERY interesting - the bullet didn't hit it, but it was utterly disrupted near the top (as if it had been cooked - meat was grey and hard) and the disruption got weaker and weaker till at the bottom of the heart the tissue was still in good condition. An excellent chance to look at the effect of cavication and pressure wave dynamics inside the body cavity.
I've noticed for example that while the shock wave created by a standard mushrooming bullet and an x bullet LOOKS very similar in ballistic gelatin, the actual shockwave inside the animal is very different between the two. There's also a lot to learn about the biology of the animals in general, and part of what hunting is all about is getting to know the animals.
I was amazed last year after seeing my first 'bow kill' to observe the effects - the arrow struck the animal in the kneck, severing the arteries there and part of the windpipe, and the amount of blood the animal lost from a hole not much bigger than a bullet's was simply astounding. The cavity was practically bloodless when i cracked it open - and 'tracking' the animal wasn't very hard considering the massive spray of blood it'd left.
There's always a lot to learn. And still a lot I don't know - why do ravens and crows seem to tend to avoid bear guts, but love deer guts? Why precisely can even a small grizzlie take hits that would kill a black bear of roughly the same size outright and still keep functioning for a time? What makes elk tougher than moose?
New hunters shouldn't think of it as 'gross' - but rather as a chance to begin to learn more about the animals and become better hunters.