Justice is a fan-made global mod.

I didn't notice; if that's the case, there might be some sense in this change.

Okay, let's look at your mod:
Elder Gremlins. Attack 3(+1), Defense 3(+1), Damage 2-2(+1 to min.) Health 6, Initiative 12, Growth 20
Bone Archers. Attack 1 (0), Defense 2 (0), Damage 1-1(-1 to max.) Health 4, Initiative 11, Growth 25
Where is the logic here? A +25% increase in Growth doesn't compensate for the worse parameters and twice the lower damage.

I had incorrect information about Bone Warriors; I think 1-2 damage is more balanced for them.

P.S. No offense, balancing is not an easy task; as you requested, I am expressing my opinion.