Well, my two cents worth won't make much difference, but here it is anyhow... Everybody is getting too worked up about who shoots what and why. It is simple - people shoot what they like simply because they like it. None of us has the moral right to pass judgement on what the other guy wants to shoot. The main focus should be to have fun, so let the gung ho target guys go to the 3D shoot to be competitive and win trophies. Let the bowhunter go to work on mastering his hunting rig. Either way, it's all good!
Personally, I don't really equate 3D shoots to any realistic hunting scenario, but it does make me think in terms of hunting. For example, a life-like target helps me to focus on picking a spot in relation to a specific animal's shape.
We are all very enthusiastic and feel that our own perspective is probably more correct than many others. Just remember that the others feel they have have the inside track on how this whole thing should be approached. The best part is that everybody is right. Go to the shoot and compete at whatever level floats your boat, and it makes no difference if you are competing against the Cadillac rig, or competing against yourself. Just look for the fun.
Actually, you can compete at both levels at the same time. No matter how hard you compete against the other guy and his equipment, you still must compete against yourself in order to maintain form, concentration and discipline for each shot.
In the final analysis, my view is that the most significant aspect of any 3D shoot has nothing to do with competition. Rather, it is the chance to interact with other trad shooters. It gives one a chance to meet a lot of really nice folks.
I apologize for being too verbose.