You wouldn't agree there that some fields are more scientific than others? Is physics not more of a science than mechanical engineering? Is linguistics not more of a science than english? Is logic\mathematical analysis not more of a science than philosophy?

Abstracted fields are useful because they can be practical and an application of knowledge. That doesn't make them natural science. I say this not as a "buff" but as someone whose primary in university was cognitive science and has done their fair share of hooking people up to EEGs.