"Cattle was the only group of animals from LTD2 in which we find the remains of very young (around 6 months) and immature (3–4 years) individuals together with the remains of mature individuals (Table 3; Fig. 6). The remains of all other wildlife species (antelopes, warthogs, porcupines, etc.) were exclusively from mature individuals. Herd reduction through the elimination of redundant juveniles: males and females after calving, is considered one of the primary markers of ruminant domestication (Zeder, 2008)."
We have handling of wild aurochs in the Nabta region and now this. The evidence is pretty conclusive here if people were quick to dismiss the takes of Nabta Playa.
It also makes sense why in the Western Desert in the more abundant material evidence, the people were part hunter-gatherers, not purely pastoralists.
It seems in the early Neolithic these people were poto-pastoralists:
"It would be inaccurate to characterise the Early Holocene communities of Letti as pastoralists (Makarewicz, 2013; Manzano et al. 2021), but we do see features of nomadism in them and a close association with herds of (wild?) cattle."
Interestingly, they claim that the fish culture complex that occurred with the Mesolithic peoples occurred after these proto-pastoralist peoples. The Mesolithic groups were more on the Nilo-Saharan types. But this does not mean they entered the region during that time. After all, morphologically they cluster with Jebel Sahaba who were a group from Lower Nubia much earlier. Although it is unlikely Jebel Sahaba speakers were Nilo-Saharan speakers, though it is a big chance the fishers were.
I think this is a very nuanced and accommodating hypothesis that explains the complex adaptive systems of living for suite survival modes that are not too rigidly formulaic:
"The results of our research led us to propose a thesis that at the time of the last drastic aridification (MIS2) in Central Africa refugial areas for the savannah ecosystem were preserved, e.g., in the Mega-Chad and Kordofan zones (Fig. 8). Finds of aurochs remains from Kashm el-Girba dating to over 8000 BCE support this assumption (Peters, 1989b). Hunting specialisation, recorded in the late Pleistocene (Osypińska et al., 2021a), was hypothetically conducive to controlling herds of select animals, to following them, and to protecting them (theses already proposed at the dawn of modern science although since the mid-20th century superseded by the concept of the Neolithic Revolution). They could constitute a “living resource” and a safety net in emergency situations. This set of human behaviours could consequently promoted the transition to the early stage of domestication, without strong interference from behavioural, morphological, and physiological changes in the animals, as was the case in the Middle East. In the early Holocene, when the savannah extended to the Southern Sahara once again (Nicoll, 2004), people and the cattle previously isolated in the central part of Sahel migrated to the Nile Valley."
Later the paper claims that reduction in size was not necessarily the trait of domestication for the African environment in the early Neolithic because of the complex factors. Basically these proto-pastoralist hunter-gatherers handled the aurochs in a way that did not deen reduction in size because of their mixed use of cattle and how they subsisted in a "nomadic" way.