Waryaa Midrigeez u do know that also the bilen from keren one of Eritrea's nine tribes are also partly agaw when we talk about their ancestry, eventhough they heavily intermarry with ur tigre and the Biher tigryans. some of them are short the afars are also short while the bejas are tall and the tigres are also tall.
Indeed. Blin is a saho word meaning "Christians". They migrated to Eritrea when the za-agwe dynasty who were yahud took over Ethiopia and started genocide to every Christian, Since they were Christian they Moved to Eritrea and moved around until they settled In the town of Keren. At that time Eritrea was under the beja confideration Meaning the za-agwe were much weaker and even paid tax every year to the King of Midri Bahri which is one of the Provinces of the confiderncy. The blin were called Blin which in saho means Christians because they were the christians who refused to convert to Judaism in the 12th Century. Today Most Blin are mixed, for a start half of them are actually Non Blin in origin and are qabils who moved from hamaseen region and the sahel who adopted the Blin language. The other half who are more of original Blin are mixed with Tigre and beja. That is why you will see half of the blin are short really short and the other half are really Tall. the tall half has more of a non agew origin.
Afars are short in general but i have seen many who are tall I think maybe they are mixed.