The Odum of Ala Igbo
Hail Biafra!
No ones saying the two are related. Hell especially not me. IF they did come from East they would have been one of the MANY people on the Nile Valley. Ancient Egyptans themselves weren't monolithic. From what I got from the article is that both AE and Yorubas believe in a one true deity that created the universe but believe in "local gods."
The article explains it better than me. I suggest reading the part on the Ancient Egyptians.
re: Coincidences among various African cultures
The Green Sahara certainly could have been a conduit for cultural similarities. But if so, that happened a very long time ago (before Ancient Kemet). And even then, Yoruba culture is only 2000 years old or so. Which is another reason why I think articles which try to link the Yoruba to Egypt is a big reach.
If Yorubas came from the East, they would have some sort of Nilotic imprint given the Nilotic domination of the Upper Nile occurred a few thousand years before the creation of the first Yoruba peoples.
re: Religion
Many African peoples have the concept of the "Big God" and lower deities.
I'm just tired of seeing noble African peoples saying their ancestors come from Egypt, Persia, Iraq, Israel etc. The evidence point towards the indigenous creation of most of West Africa's peoples.