"Coated Arms" passive branch not applying (or not showing) on ailment chances

The Coated Arms branch (one handed weapons/attacks) branch of the passive tree (down from dual wield/two handed) is not applying ailment chance to skill info.

is the branch itself broken? or is it not being displayed in skill info?
OR is it not applicable to Dual Wielding? (though i did test with just 1 mace and no change)