I think fable 3 had a good poke at this and is where I currently stand on it "if you bring me 5 skycrystals I will forge you a level 3 skyforge sword, oh but wait im only a level to skyforge smith. I'll just go level up a bit, wait for me here"
I've never understood all the restrictions. It I can get a daedric sword at level 2, then I say well bloody done! It doesn't upset balance either in pvp because I still wouldn't be as effective as someone who has mastered the skill line and is using a dwarven sword.
Also why do most mmo Tie weapon use to the smithing skill? I personally thing smithing and weapon skill are two completely different things.