No, I do not think it is all a figment of the imagination. The arguments are cogent and reasonable. In fact, it fits together so nicely it is almost like a plan. To good to be true.
No. What we are dealing with is too sloppy to be conclusive. I guarantee if I ever took a course in osteometrics as it relates to evolution I would be asking so many questions the perfessor would be offended and take it personally because I did not swallow his interpretations whole cloth. He would call me stupid and flunk me because I questioned his assumption that this bone shape had to precede that bone shape in history, and that all these like-shaped bones must be due to ethnic contiguity.
Horse to water and all that. I'm sure it would be a total waste of everyone's time and a big disruption, yes.