During the stream, it was mentioned that terraforming sucked. I think an easy way to make terraforming easier whilst maintaining the granularity of control of heights would be to make soil have a weight, similar to ashes. One of the biggest problems with soil collection currently (once you get a decent metal shovel) isn't the speed of digging tiles or the stamina drain, but how much effort it is to move your tiny inventory of dirt into stockpiles every few scoops.
This is partially because a shovel is two-handed, so tsacks aren't an option. But if each unit of dirt was to take up 0.05 or 0.1 kg, and each inventory space allowed us to store 1kg of dirt, then it would make transporting dirt to stockpiles, and filling surveys, much easier.
A nice side effect is that we could store large quantities of dirt in barrels, and of course use buckets

. Stockpile size could remain the same, as barrels give a better storage option that requires some effort and planning to create -> 1000 units per barrel at 0.1 kg/unit vs 250 in a stockpile.