If a NPC is aggravted, and nearby NPC’s within the line of sight of the NPC triggered should be aggravated. For example if you attack a NPC on a boat, then "NPC’s which could see the NPC being triggered should be aggravated aswell.’
(A video showcase of how nearby NPC’s will not be aggravted if you attack one of them while you are not within their line of sight.)
This is a very simple suggestion, I may update this if I feel there is something I could add.
Also, since this is on a “Suggestions” post, I’ll mention that I applied for posting suggestions, got borderline ignored, and can no longer apply to post suggestions.