Yeah, I the loc doesn't handle the duplicate ability well, the one on the second row SHOULD be applying to primary weapon, while the one on the knife row is keyed to the secondary weapon. Unfortunately I can't make the Localazation recognizing the difference unless I clone the ability. That being said, on my to-do list is a Coup type ability specific to the freebooter that applies to both.

My Freebooter has Coup de Grâce twice on FSGT column and both are for the knife according to localization.