When the restauration was progressing each new phase became the only worth phase by killing previous grade rewards.

Now that it's finished, wouldn't it be time to resurect them ? there are achievements for doing the expert 80 G2 and G3 recipes ; these are almost as hard/annoying as the G4 but give almost nothing ? (almost no points and no minigame)

Same for diadem, and maybe add a 2nd action to aetheromatic auger that only give you the expert materials of each grade ?

There are a lot more QoL that would be nice but I'll stop here because theses wouldn't "lessen" the value of the achievement of people who did in when it was ongoing : they went there ang got full point/bonus values.