Point taken and you're quite right. A colonist should be more like a bard than a fighter.
I was thinking sneak attack so that he could feint (or feint using an intimidate check) to open up the ability for sneak attack. And skirmish requires movement for full effect. Barring the act of boarding a ship or running up to a frightened villager, I don't think of sailors moving (under their own power, obviously the ship moves) that much in combat. At least when it gets to sword-fighting,that is; maybe at a distance with the pistol.
I will take it under advisement, though.