I don't think it is as easy to balance as you suppose.
f,s, turn, f,s, strafe, f,s = my keybinds for looting three dew collectors for 18 clean water. About one second of work after the initial setup.
Balancing to that seems unnecessary, as that isn't really work.
The competing suggestion:
fill six stacks of jars, 10 at a time (clickety click-click)
loot 60 filtered water from the filter station, queue up 60 filtered water
loot campfire for 60 boiled waters, queue 60 boiled waters, add wood
In balance the latter still feels like work, while the in-game version removes basically all of it.
At the start, you have a couple jars and you're running back and forth with them, or crafting buckets; or currently you spend an inventory slot for murky jars.
Effort seems more for the alt suggestion in both ends; and I can't foresee it being less in between, unless TFP just mangles the drop rate.
But I guess they want to avoid the situation where most crafting deletes jars while drinking doesn't. Trying to force that comparison more "even", even though "not drinking" will kinda kill you by proxy, making it rather impossible to balance with any of the crafting in the game.