But arn't the current class quest items not just simple items you could craft before even trying the quests, like simple potions, gear or other stuff everyone could craft to just use it?
This would exclude the ability to craft this items before you have reached the quest to unlock them.

I would prefer it if they would create special recipes just for the class quests, like with fisher in SB you only catch special class quest fishes, who are only available during the quest and not tradeable in any way.