The afars that have J1 are most likely the asaimara tribe, as they are said to have migrated from the Abyssinian highlands in 16th century. they are basically assimilated Amharas/habeshi. The other group, called adoimara are the true afar natives. they inhabit the northern part in Eritrea and Djibouti. I'm sure that this group has haplogroup E.100%
Afar are like 15-25% J1 in Eritrea (higher then anyone in the horn except the Somali minorities ) showed in the studies.
U wouldn’t find that many recent J1 or ancient J1 in Oromo regions except probably 1%.
He has agenda that he is pushing .
Ancient seabeans didn’t even spread that far logically