That's awesome! I came up with an analogy to unpack this for a new player: if the Balazaring lands were the Yukon in 1750 this would be someone riding a Spanish horse, who might be of Spanish or American descent, in the regalia of a particular British colonial regiment known for its fighting in New Orleans. Does that scan?
We dropped into Glorantha with just a few texts (Runequest CE and Griffin Mountain) seeking to experience the sandbox as one might have before the internet. That's expanded as comprehension has grown; players are drawing from Cults of Prax, and I have the Glorantha Sourcebook and Borderlands & Beyond. On B&B p. 195 I find a Sartarite bandit whose relationship to an ogre worshipper of Cacodemon makes for a nice hook, as our "B team" PCs recently encountered Gondo Horst. Could that bandit have been one of the Headhunters? What might they know about Argrath that would prove whether they really fought with him? What would a bandit need to know about the Culbrea tribe in order to wear their kit as a costume to help drum up contributions to Sartarite independence?
For all that my group enjoys cosplaying like we are gamers in 1981, it is really amazing to be able to get such expert advice drawing on such a vast body of lore with such speed! Thank you.