As far as JRPG vs WRPG goes that's just the design aesthetic that the developers want to take the game, and BioWare is pretty firmly rooted in WRPG in this regard, even if Dragon Age 2 did dabble a bit here and there. From what I've seen of Inquisition it's already been decided to be in the WRPG camp for armour designs.
While I'm still of the opinion that armour should give the impression that it can do what it's designed to do even if it's not 100% realistic, I do think that the lighter armour classes have more freedom there. A mage might be more concerned about fashion and style than going into combat.
Or the Dalish would have outfits designed to be worn by hunters who are tracking animals, not going into battle wearing it. Showing off more skin here is just fine as what it's designed to do is not actually block enemy weapons.
What I mainly ridiculous looking are the platekinis, especially when the same armour on a male makes them look like a metallic mountain.