Get ready: nerf inbound LOL!
This isn't a nerf, it's the reversal of a previous buff. One has to assume FDev have balanced material requirements against availability. If it's currently too easy to accumulate mats (according to their internal plan) this change makes sense (to them). It it becomes too hard it can be adjusted again, or the requirements can be changed.
It makes more sense to me that we collect one item & the recepies are adjusted than the other way around. That said, this change is at odds with giving us much larger mats bins in 3.0. Seems a bit overkill.