That's probably what happened they married each-other and passed on that descent through that paternally over generations.
Samaale is not the formal name, it is Muhammad Yow son of Muhammad Abd al-Rahman who is claimed to be son of Aqil , just like Abdirahman Bin Ismail Al_Jabarti alternatively known as Darood who is the son of Ismail and so on.
I am not making a statement on where it is true or not i am just sharing that most Somali clans claim Aqili, it's just a general Somali lineage claim and that Somalis of the past shared that same tradition.
You can read my other posts on this thread zero, proof to what you said. It was just bunch of Somali clans and Awfat/Awdal just expanded from the Somali coast.
Afar was known as Danakil was a seperate entity altogether.