The wardrobe system is great. No doubts about it. It solves a great deal of hassle for weapons/armors skins. However, to include legendary skins in it, is just thoughtless to those who spent countless hours in crafting an item to make their gameplay or a specific toon more enjoyable and “special”.
Being able to skin fake a legendary just kills the value and rarity of the item. And perhaps, on the long run, the game itself.
Is understandable this patch will benefit most those who started recently or the past 6 months. But i see no other reason than ANet turning a bit of a cold shoulder to its most avid, long dated players and target a wider market for more lucrative purposes. It is a business after all 
I hope i’m wrong, thank you for consideration