The evidence does not demonstrate that humans evolved from some kind of humanlike yet intellectually primitive precursor.
They claim that the small-brained species had high intelligence and engaged in activities like burying their dead, using fire, and engaging in cave wall art.
I could not find a single reviewer who accepted the claims of the papers. They were harshly critical of claims of intentional burial of the skeletons.
This rare find shows that some of the very human-like forms in the fossil record were actually much smarter than we thought.
Even something as catastrophic as the eruption of Mount St. Helens was, in the end, a life-giving event.