Kind of. The problem right now is a couple-fold....
1) It's super easy to get to 34x with warfronts, rares, etc. It's harder to get past a345 or 350 without normal raiding or higher (not high) keys.
2) It's hard to fill in those last 370+ slots since those only come from raids and ~9+ keys.
Valor at 355 addresses the first point - you can move past 345 or so more easily.
But, they'd also need to adjust the ease of getting 340 stuff. The problem really is that adding a currency won't solve things alone, they need to redo how they're doing loot entirely. For example, WQs need some incentive. Instead of dropping 325s, they'd likely need to drop justice. Warfronts couldn't rain 340 on you but then why would you do them more than once? It all interlocks, really.