The idea is not to use them 100/100% of the time, the idea is that they are useful if you decide to use them, and I think that real houses comply with this. Also many African minor factions and some Asian and American natives, but it seems very citutional for most civilizations that are not Incas, French, Mexican or USA and Africans.
That’s why I think a general rework is necessary so that the average civilization can ally in a way that is worth the risk. [Suggestion–rework] Natives or minor factions