Considering, as mentioned, they already allow some form of appearance alterations due to glamor system I see no reason that the one forging the weapon shouldn't be able to dictate what the original look will turn out like. Stats would be the tricky part. However it shouldn't an issue for a "master blacksmith" to tweak stats by adding a different material or a blend of materials to the mix; or for them to be able to add an extra slot or two for materia, especially if said blacksmith has more skill than another blacksmith. Just because the game currently doesn't allow for unique gear doesn't mean that they couldn't add it to some extent. Also, to claim a player has skill and refuses to see that blacksmithing is a skill and an even more important one than an individual player skill is lacking in knowledge. It'd be like saying that the strongest person can face the weakest person on equal footing if they wore the same gear into battle. Or even better yet a mage could beat a warrior in a fist fight if they could wield the same gear. I don't know, I guess that I just don't care for equitable stats without the work being put in. Especially in a game that has the potential for so much more.