Collateral Damage in Units Chart

There's all stat values like attack/def/hp/crit except "collateral damage" in here https://tr.atwar-game.com/units.php
Can it be added? I think it's important because I'm guessing there's going to be new strategies in the future that will include that.

When both ultra big stacks of infantry collides there are a lot of collateral damage almost killing all the population. (example 50+ inf attacking a nother stack of 30+ inf). Long time ago i was wondering why infantry and militia stacks kill population when IRL only heavy artillery, tanks and bombers does that.