Honestly I'd prefer to see crafted gear being the means of getting NM/Primal/Dungeon gear. You need to use something at cap in order to beat the end-game content and get the real good gear. This means that there's still a demand for crafted items at cap, in addition to materia. That stuff should be rare and amazing, at least for specific situations. So far the only way that some NM/Primal/Dungeon gear is better than crafted gear is that it gives bonuses you can't get through materia on that piece or at all.

Edit: That or of course do like the older top NMs and drop items used to craft amazing gear.