Ok I just noticed this:

Ingame Throne:
Guard Stations 0 0.0% 0.0% lower resource losses when attacked (2.05%)

Guard Stations
Unlike Forts, Guard Stations will not make you less vulnerable to attacks. Nevertheless, they will effectively protect your land, making the enemy’s attacks against your province less efficient.
Decreases Land Losses when Attacked by % * 2

So which is correct?
If the wiki is correct can it be fixed in game?
If it is the ingame is correct what is considered a "resource"?