You don't think populations, habitats and methods changed over time? Read the abstract for the second article. Just what wild game is left in Somalia?They are not traditional hunter-gatherers, they are modernized people who only occasionally hunt as a some sort of local tradition. This is like calling Americans who go to woods and hunt deer as paleolithic peoples.
Also, there is strong evidence that they are Somali Bantus rather than anything else. They are frequently listed along with Somali Bantus in journal articles. And there are many anthropological similarities between them and the Maroon communities of South-Central America.
If you are claiming the remains on Buur Heybe are Samaale, it won't work. You will also have to give up your northeast Sudan origin theory. The human remains date to 11 K + and the habitation to 20K. The pottery is typical and consistent clear back to the mid-Holocene. No one in the academic community has suggested these people are anything but Eyle.
https://usm.maine.edu/sites/default...Range Site, Buur Hakaba, southern Somalia.pdf
Recent archaeological excavations of a large rockshelter at Buur Heybe, southern Somalia, resulted in the discovery of fourteen human burials of early Holocene age. The Gogoshiis Qabe burials represent: 1) the first primary context prehistoric skeletal remains from Somalia; 2) the earliest chronometrically dated burials from the Horn of Africa (Somalia, Ethiopia and Djibouti); and 3) the earliest definitive evidence in eastern Africa for grave goods (lesser kudu horns). The mortuary data are examined in light of an ecological model of hunter/gatherer socio/territorial organization which predicts that when critical human resources are spatio/temporally unpredictable and scarce, hunter/gatherers are unlikely to bury their dead in formal burial areas or build grave monuments. Conversely, when resources are abundant and predictable across time and space, conditions will arise that favour the construction of grave monuments and/or formal burial areas, possibly as a means of ritualizing corporate lineal descent."