The write up in the article for "power sets" affected by weapon customization is confusing.
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Current power sets that benefit from this upgrade include Assault Rifle, Mercenaries/Assault Rifle, Bow, Broadsword, Claws, Villain Claws, Dual Blades (see below), Katana, Ninja Blade, Mace, Robotics/Pulse Rifle, and Thugs/Dual Pistols.
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For example: "Bow" isn't a power set, it should probably say Archery and Trick Arrow specifically. Likewise the lack of "Ninjas/Bow" from the list seems to imply that it's not included (even though BAB has made it clear later that it is).
May I suggest quickly rewriting that list to specifically reference only actual Power Sets and to make sure that all affected Power Sets get included.