You are not wrong.
I am merely uneducated pertaining to pistol braces.
I know nothing about them. Call me Sgt Schultz.
My question wasn't aimed at you specifically. More at MSM people who write such articles being lazy and calling it a pistol brace when it is not...unless I am wrong.
If I am not, then, their attempts to cause the most confusion and enmity towards handguns in general is rather obvious.