:You are right. When speaking in certain contexts e.g.: "Primitive humans such as Homo habilis", the referent of expert usage of the word "human" does actually have a much wider scope than that of this article, which might be called "fully modern Homo sapiens sapiens".  There are many good reasons for this, not the least of which lies in the fact that this referent is way plenty wide enough a scope for any one article to effectively handle, and so any attempt to widen this scope is probably doomed, so let's not try.  What this article needs to do, however, is to address this concern in as blunt, upfront, and as clear a way as possible that, although this article is going to draw the circle around its referent where it does, that doesn't mean that experts don't often use the term to refer to a wider scope. I'm not exactly sure the best way to go about it.  Re-reading it just now, such a sentence would seem to fit quite well in the section on Etymology, which I'd then retitle "Etymology and Semantics" or some such.  We'd start a new paragraph at the end of that section and frame the sentence along these lines: "Althogh in this context blah blah "Fully Modern H.s.sapiens, .... nevertheless true that some experts ... any of the Homo (genus) "humans"... yadda yadda even Australopithecus..." and whatnot, but to keep it really brief and to the point.  Having done this, your concern will have been addressed and acknowleged and at the same time the article to have the referent with the scope it wants.