Why does the "Mother of us All" Achievement exclude the North African pagan faith Achamán?

[Meka66]

As a few folks in this thread have theorised, I forgot about the achievement when adding the new faith. It will be fixed in a later patch

 

[Meka66]

Will they also become involved in the struggle if they shift de jure to Hispania.
It seems like that is the intent of the choice, but both culture and faith is considered uninvolved.
The culture can be solved by hybridizing but having to shift away from achamanism feels bad.

Struggle goes off of geographical region, not de-jure hierarchy. You can become involved by converting a few provinces to Achamanism.