It might. I'd be especially interested in the ones with differently-shaped jaws. In particular, apes have more-or less parallel teeth along the side, whereas people have a more parabola-shaped jaw. Discussed here.
What is the variance in jaw curvature among modern humans? Amoungst chimps and apes? What is the variance in those claimed artifacts of proto-human jaws?
The site you linked to, as best I can tell, does NOT give numbers, numbers of artifacts, numbers measured of jaw widths, curvatures etc. Almost no numbers at all. Where is Lord Kelvin when you need him? Wasn't it Lord Kelvin who said "no science without numbers!"? That site you linked to, iirc, makes a claim of a novel human species or subspecies based on only one artifact -- one teeny toe bone! Wow! Such wonderful *science*!