Differentiating between a piece of armor with different stats and different class requirements makes it no longer a colored version of the original armor. May as well toss the entire dye system out the window.
I really liked the fact that you could have multiple colors of the same gear simply for preference sake and wish to revert back this way.
Also, where is the pink all-purpose dye? Please bring pink back into the game. As a female player, it was one of the very few things that I really appreciated having. It let me express my soft feminine side, or giggle at big Roedygans dressed in something silly and pastel. Either way, it always made me smile.
Sorry, my post is neither articulate or well crafted as most the other replies in this thread. Running on less than 2 hours of sleep. Need to find Yoshi-P and bum some coffee off of him. Zzzz.