Kiln
It is something that gets brought up and kicked around from time to time. Probably, eventually
Modular Armour System
Ha! I wish.
Firepit Rebalance
A cooking refactor would be cool but not likely any time soon as that was the focus not too long ago.
Rift Blocking Device
When it comes to lore related stuff, it is added slowly and cautiously. You'll probably see this as a mod at some point.
Temporal Storms are currently useless
This is fair and something that is thought about a lot.
Drifter Accuracy
It is a new feature. Will probably be rebalanced at some point.
Tool Handles
Tinkers construct was one of my favorite mods for minecraft. I don't think this will be a thing as there's an effort to implement calculation vs player gain rough calculation done and something like this wouldn't pass unless part of a larger overhaul.
Hoe Usage
You aren't wrong but similar to the previous answer, it's low impact and we have to be very intentional with our expensive developer time. You can look at the titles among the VS team to see how precious that resource really is.