I was a bit surprised to find that, when setting out one of my pets to make a bundle of 20 x 5 Bandages, neither time nor resources used was decreased, with both being exactly 20 times what it would normally take to make the single amount of 5 bandages. Since resources seem to be overabundant already, why not slightly decrease the time per craft based upon how many are being made at a time? There could even be crafting levels tied to an individual pet, as realistically, a pet who's created 100 bandages before will be fasted at making the next load than one who's never crafted anything before.

I think this is a pretty good idea although I feel like the only thing this would apply to right now is bandages...

This game needs more craftable consumables in order for this to really be of benefit.

Although I think a good counter-idea, if you will, would be use MORE materials to take LESS time. Since, as you said, there is an over-abundance of materials being able to waste a few for crafting something to save an hour or something would be a neat feature that would help lessen the amount of available materials significantly.

Golems are also craftable consumables in a way, though they just add to the resource abundance and I agree that more would be helpful. And using more materials to take less time is a neat idea as well. :)