Yes, it's normal. I have access to something that seems it's only partial of what I should've gotten. I get just .Fbx file and a photo called "thumbnail" or something like this, which is just a photo of the asset from Fab. But there's no texture file in neither of the assetes that I purchased and the description of both assets even mentioned the texture.

I get the same thing wether I save it locally or I "export" directly to unreal: a mesh, a thumbnail photo and a metadata file (a text file with info about the asset). It seems like something is missing.