(This is of course assuming you're open to the idea of adding features to the mod)

I've always found it weird that pawns get negative thoughts from pain but not losing their limbs, which is normally a pretty ♥♥♥♥♥♥ traumatic experience IRL, so maybe adding those would add another layer of complexity to the game? Hard to imagine someone waking up after a battle missing both legs and only mildly upset because of the pain.

The thoughts could disappear after a long time as the shock wears off, or you could reduce the debuff with prosthetics and then completely remove it with bionics