Vanity/Glamour System: Suggestion about multi slot equips

Ok, so what the glamour claims to work is that you change the appearance of an individual piece of equipment with that of a equal or lower piece.

Wouldnt it be more appropiate to say, add a second gear line and name that the glamour set, basically, a pure cosmetic set that is not affected with the stats set.

Like, you equip the Lv90 Artifact Armor as your primary set for stats, while you can equip on your glamour slots, say, the Odin Armor.

Think about it this way. imagine this was your equipment screen, with the weapons, armor and accesory slots
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and with an icon below, you toggle between your primary set and your glamour set, and can equip any piece of equipment that has been glamour'd in the glamour slots.

The only place where i can see a restriction is for the class/jobs that wield one handed or two handed weapons.

why not a system like this? Or do you guys see a flaw on this type of idea?