Say you have two guys at a spot that are both super good. One has a redshirt and is slightly better (talking like 2 points at nationals extra max), the other doesn't. They both have finalist potential. Obviously as a coach you want to let the redshirt guy redshirt and maximize your time with both wrestlers. But, the decision is ultimately up to the wrestler and he doesn't want to redshirt.
The coach isn't gonna bench the guy who chose not to redshirt just cause he's mad at him for redshirting.
Or say a kid like Ybarra just doesn't want to redshirt, maybe he wants to wrestle under the lights of Carver and this year is his best chance, maybe he wants to be at college as little as possible, maybe he's looking to get a leg up on Ayala, who knows. Even though I'm sure the coaches REALLY want him to redshirt, if he doesn't want to, he won't redshirt. Simple as that.
(Just examples inspired by some hypotheticals we could have in the room, no inside info here).