The evidence does not demonstrate that humans evolved from some kind of humanlike yet intellectually primitive precursor.
Researchers, led by Lee Berger, had claimed in a Netflix documentary that the species buried its dead, used fire, used tools, and made rock art.
Only humans understand death as the inevitable and final reality for all mortal beings no matter what we do.
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.