Flounder - no one is arguing that we should ONLY use superior projectiles. Just one or two are saying that if you use a sidelock, you don't need anything other than a PRB. We are attempting to enlighten this (these) individuals but apparently to no avail.
To put it in the terms of a centerfire rifle, we all know a .243 can kill an elk with proper bullet placement - but I personally would much prefer to use a 30-06 as minimum. Again, its all personal.
But although either way the end result is a dead animal, IMO, I want to use the best, in this case, projectile I can shoot accurately. And I stress accurately. I feel I owe it to the quarry I am persuing to kill it quickly with a precise shot delivering good terminal performance.