I don't mind the fact that you have to actually craft tannic fluid right now. My problem is that the game doesn't really offer you a way to do it in large quantities like it used to without a lot of clicking.
what should happen is, if you have a barrel of water next to your character, and a tanning tub, or another empty barrel, bucket in hand, inventory full of bark, you hit craft all, it should fill that tub / empty barrel with tannic fluid until full.