In short: Making crafted items unidentified upon being crafted would put the crafted tier properly in place somewhere between legendary and mythic, rather than being a black sheep off in its own little corner. I think doing this is a simple way to make the whole crafting system feel more integrated with the rest of the game rather than something that was slapped on for extra grind hours.
I absolutely love the crafting system, despite it being very grindy, but one thing that's always stood out to me is how differently the crafted gear is treated from normal gear. A simple change that I think could work pretty well to bring crafted items more in line with how the rest of the game works to feel more cohesive, is to make crafted items unidentified. So instead of getting an identified item right after crafting, you get an item where you can see the range each stat can be, just like gear drops from lootruns. Importantly, this would also mean that crafted items made with the same ingredients can be sold in bulk just like regular items before identifying, rather than needing a separate trade market slot for each and every item. This would make it a lot easier to get an overview of what gear to buy for someone who's just starting out with crafted items. It would also make it easier for crafters to sell their stock, and for people to buy said stock, which might get more people interested in crafting 👀? It would also allow for Corkian amplifiers to be used on crafted items. It would also make it easier to manage the massive expanse of possible gear that the crafting system brings. Sure, some dedicated players know exactly what ingredients, materials, and the gear they make, is the best, but the vast majority of people don't. If you're just starting out with crafting, it's very overwhelming. Being able to see that this and that main attack helmet are both actually the same, without having to study the IDs would give a much better overview for less experienced players.