I like your logic, Guy. However, I think you can make a distinct here. Nebraska resided in the Big 8 when Rozier played. That conference subsequently expanded and renamed itself as the Big 12. I see that as different from the later move of Nebraska from the Big 12 conference to an entirely different conference in the Big 10.
When the Big 8 renamed itself the Big 12, it remained the same conference or at least retained its essence, so all Big 8 records and former players would be admonished with the Big 12 title.
However, when Nebraska decided to move to a brand new title with no prior affiliation, no record or former player should be relabeled under the new conference but should remain with the team and former conference.