This idea is reinforced by the level 9 feature of both the 2014 and 2024 Armorer, which specifically allows the Armorer weapon to have magical bonuses.
Yeah, and that feature has been nerfed down to one extra plan that must be armor-related instead of the 2024 version which gave you two extra infusions and let you count each part of your armor separately (body, head, boots, gauntlets).
I think it’s a deliberate change that implies you can’t just replace the gauntlets with magic ones.
EDIT: on an unrelated note, the Level 17 Construct Forge bastion facility lets you create a Warforged Titan. It costs 200,000 gp and comes with a caveat: “Creating new Warforged Titans is illegal under the terms of the Treaty of Korth, which ended the Last War. Violating the treaty risks reigniting open war across Khorvaire.”
It should be the Treaty of Thronehold, but whatever … that caveat is great. “You can build this but beware the consequences!”
I note that regular warforged are
not an option on the list. (The other options are animated armor, animated broom, flying sword, rug of smothering, helmed horror, scarecrow, and shield guardian).