That makes sens!
I am more and more convinced that there existed a certain number of clans (basic constituents or raw material) that are build in federation like Borana, bareentuma, Samaalee...at times these federations broke and the same constituents regrouped differently in other confederations with exclusion or addition of sheegattos!
Its clearly visible in Oromo clans! one can even easily find out the basic constituents the original clans!
I suspect before the self styled arabism claim, somalis probably had moieties like oromo (Gurgura has still moieties) and followed the same constructing patterns.
This means Oromo and Somali identity are only blanket identities for probably heterogenous clan federations
Probably we are the biggest sheegattos of the world
B.