[mod edited]
What the OP failed to do here is to zoom out and first ask the fundamental question: “Does it make sense to add ‘faction X’ if you take into consideration that the game is about factions that excelled in the area of military between 500 and 1500”.
If you were to answer this question for groups such as Polynesians, Inuit, Sámi, Maori, the “Nahua”, “Seven Fires” and many, many others; the answer to this question would be No.
OP also failed to answer this fundamental question in the other topic that she made. I assume that it is for that reason that she decided to abuse the flagging functionality.