Sinug and Sinama?

As a Tausug- and Sama-descent person, I am fascinated by the Sinug (Tausug Language) and Sinama (Sama Language).

While Sinug is largely spoken by the Tausug of Sulu, its language siblings, such as Butuanon and Surigaonon, can not be found anywhere in the Sulu Archipelago, but hundreds of miles to the Eastern region of Mainland Mindanao in Caraga.

Sinama is a language shared by several inter-related ethnic groups (e.g. Sama, Bajaw, Bangingi) spanning three countries in Equator Asia. Isn't it a surprise to learn that its northern speakers, the Abaknon, can be found in Samar in the Eastern Visayan Region of the Philippines?