There are a couple of things I thought about when reading the articles and looking at the morphology:
Are these traits due to hybridization? Or a surviving population of later
Homo pushed out of North Africa by
Homo sapiens?
If they are due to hybridization, could we expect that certain cultural traits might be carried forward? With a probable low population pressure from surrounding (probably dominant) cultures, could we see artifacts that share traits with earlier Homo erectus populations?
I would expect that these examples more closely resemble cladogenesis and the further branching off of hominin species (consider the diversity within Africa prior to the migration of
Homo sapiens), if they are not due to hybridization.
I expect that a lot of questions would be resolved if they are able to extract some DNA from the remains.