I would be nice to see that kind of thing, crafters definitely need stuff to craft. Currently, their best recipes are already outpaced by dungeon drops. There is no point in being a crafter unless you're a culinarian or alchemist. I would add to your suggestion by saying if recipe drops were added, so should exclusive component drops be added (perhaps to trash mobs to make them worth killing). Not only could you add some end-game to DoH but you could simultaneously add incentive not to skip trash mobs / speed run through content.