Unlock Champion skin for paint and other classes

I see in a previous post it's claimed that doing any of this is out of vision. How is allowing the champion pieces to be 1. set as different colors (ie. the Space Wolf champion about to be released, that I won't be able to change the color of to match that my steam name and all of my marines are based on the Space Wolves 13th company which isn't blue armor but eshin grey instead) and 2. the pieces should be allowed to be unlocked either in heraldry or the data vault so that they can be worn on other classes that can use them (ie. my sniper should be able to use some of the same pieces of phobos armor that are on the Space Wolf Champion skin).

I understand the champions are supposed to be "special characters" but with the way Games Workshop has allowed different chapters to have subtle differences, and sometimes bigger differences in how chapter companies distinguish themselves we should be allowed to do the same with all pieces put in game. Overall this really seems to not be "out of vision" at all