these mat is for 2 stars craft, them don't sell very well atm, mats are expensive so the craft is expensive.
It certainly should be nerfed, i think it don't go well with the current economy of the game,
few peoples can buy the final craft. (Big Crafter and Gatherer, Carry seller... Gold Buyer...)
But a nerf would also be annoying to someone who is actualy farming, and say what i farmed for hours, now loose in value, it can be a pain in the ass too XD.
Conclusion : if there no nerf, it will still hard to sell the final craft, if there a nerf some players will not be happy of the nerf.
From the begining involve too much works to get the item rare and too much overpriced was not a good idea.