Rare items would be one thing, but locking 90% of the new crafted glamour reagents behind a massive RNG wall is not cool. It harms the crafters who want to make the items and the players who would buy it and don't have over 100 million Gil to obtain it.
I could see things like PotD where you can get minions, mounts and special housing items. Not a single piece of cloth for a blouse... that you need 4 of to make...