No one is asking for every option.Trying to understand what you want. WOTC can't provide details on every possible option, where would they even start?
The requested info is of guideline to design or alter your own worlds, nations, factions, and races.
How to turn Woody Elves into Steel Elves or create a whole Pirate faction of sea orcs, dwarves, tritons, and halflings. How you trade out cultural class features. How different factions typically interact with the world. How a racial god might be changed to adapt to a new view of a race or how to incorporate a new god in a racial pantheon.
People take it for granted. However I don't even think many people even know how to run a LG orc god.