The only one I tried to download showed the focus point being walking man's right hand(camera left) and is not locked on. It appears that the focus lock was not obtained before the shutter was released, as Release Priority is supposed to do, release regardless of focus.
The dim light, underexposure, low contrast shirt target, if the moving person was the intended target, release priority and movement combined to make focusing less than assured. If you want others to help it would be best to post 300k or less files directly on the thread. Few people would have the patience to download all those 30mb files from another web site.
What about your other photos, in other AF modes with good targets, are they also missing focus? I doubt this is a case of "missed focus" more like premature release.