For me this has the same shape as the shape of humanoid. And it isn't best option that could be made.
It doesn't.Consider a chair, with its legs carved to look like human arms and legs, its seat to look like a torso, and its back to look like a head. It looks like a humanoid, but it doesn't have a humanoid form.
But I agree, for example picture of a humanoid looks like a humanoid, but it doesn't have a humanoid form. Your example doesn't work, but your general idea looks workable.
But I can't agree with the stance that sword can't have humanoid shape. Anything can. Sword, axe, chair, house, castle, flower, anything.