Would love to see a link for this. If you google Aweer/Boni you will find many articles all claiming the Boni are Khoisan who shifted languages. Here is the Wiki:
https://en.wikipedia.org/wiki/Aweer_people
'Evidence suggests that the Aweer/Boni, along with the related Dahalo and Wata, are remnants of the early
Bushman hunter-gatherer inhabitants of Eastern Africa. According to linguistic, anthropological and other data, these groups later came under the influence and adopted the
Afro-Asiatic languages of the
Eastern and
Southern Cushitic peoples who moved into the area.
Dahalo has consequently retained some of the characteristic
click sounds of the
Khoisan languages.
[2]
The Aweer have historically been known in the literature as
Boni or
Sanye, both of which are derogatory terms for low-caste groups.
[1][3] Their lives were drastically changed when the Kenyan government curtailed their traditional way of life in the 1960s, forcing them to settle in villages along the Hindi-Kiunga Road, between the
Boni National Reserve and the
Dodori National Reserve.
[4] Although the majority of the Aweer settled in villages located in this corridor between the two reserves, some established themselves in nearby
Bajuni villages.
Today, the Aweer in Kenya have been encouraged to adopt farming as their main livelihood.
[1] However, they also continue to engage in many of their traditional hunter-gatherer practices, utilizing the nearby forests for the collection of wild honey, plants for traditional medicine and building materials, and bush meat to supplement their diets. With laws banning the hunting of all wildlife in Kenya, the Aweer's traditional way of life is in danger.
[5]"
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http://www.khoisanpeoples.org/ claims
THE SAN, HÁDZABE, SANDAWE, WATHA, AWEER, DAHALO, KILI & KHOE-KHOE