I'm more focused on the first section. He claims Sabaeans set up colonies in northern Somalia.
"Evidence from the north-eastern Bari region in Puntland hints, however, at more than just trade. Here, several monumental inscriptions have been found that were part of a large temple made of ashlar masonry and identical to South Arabian shrines. The inscriptions have been dated on palaeographic grounds somewhere in between the late eighth and early seventh centuries BC. They refer to a temple dedicated to the god Akhakhatan and erected by orders of the admiral of the fleet of the kingdom of Saba’. Meaningfully, Sabaean people were behind the settlements in Ethiopia as well, as can be inferred from inscriptions, although it is worth remembering here that South Arabia was divided in different polities of which Sabah was but one. The Sabaean epigraphy of Punt-land confirms that ‘the African expeditions were a centralised enterprise, organised and managed by Sabaean rulers’ (Prioletta et al. 2021: 337). The outpost was probably not dissimilar to that of Yeha, but in this case we know unambiguously that it was indeed a state colony, i.e. an initiative promoted by a polity to occupy effectively and symbolically a foreign land."
"Although the available data are still limited, we can perhaps discern two different models: a proper colonialist one along the northern Somali sea-board, with direct intervention of the state and aimed at the extraction of resources,and a diasporic model in the northern Horn, led by élites who soon mixed with local people, while maintaining ties with their ancestral homeland."