Great, you pointed out a exemption, but the majority of the kids NEVER play the varsity level in the instances I pointed out.
If you have kids like David Taylor, the Stiebers, Chris Phillips, Destin McCaulley, Eric Devous, etc, they are exceptions, but they aren't the true reality of what a freshman wrestler is. If all freshmen wrestlers were like those guys, we wouldn't have the problem of inexperienced wrestlers starting on the varsity team.
Would the LAX or football coach move up a first year player to the JV or varsity squad even though he has pretty much no clue what he is doing? If he did, he wouldn't have a job for very long! Wrestling coaches are forced to bring those types of kids to the varsity level when they are not ready for the varsity level.