Quote Originally Posted by TheMightyMollusk View Post
I kind of expect the first three tiers to be simply removed in Endwalker, since they no longer serve a purpose. And the Grade 1-3 materials would become just vendor trash. I understand that they were left for a while in case anyone had any leftovers to turn in, but we're past that point now.
I think they were left there mostly so people aren't permanently locked out of getting the achievements associated with doing turn-ins for those items, as there's a distinct title for each combination of DoL/H job and restoration phase.