I think the confusion comes from the fact that Araucanas as we know them are not the birds developed in South America. Those birds were the foundation for the Araucanas and the Ameraucanas. People now say those birds were like landrace Easter Eggers, like a herd sire, but a breed sire instead I suppose. So people assigned the name EE to those birds that were the predecessors of the Araucana post-humously as it were.