Thanks for this. And @
Ielenia & @
scubi666stacy I was trying to emphasize that the motivations for the tools change and vary. It's quite acceptable to have races and factions created for lore reasons but also other reasons, like each expansion gives you something new and interesting from new lands and new beasts to new versions of humanoids, and this is exactly what blizzard does.
I often think our plethora of sub-races and factions of races are because blizzard is giving us something new each expansion which makes the game look more interesting, it's a tool used as part of their design philosophy, and does not necessarily exist to drive the lore/story forward even though it does or can do.
We have no idea which is the primary motivation (it's not really important to me anyway), but if I were to guess , it's the design philosophy for expansions rather than lore. Races introduced in the RTS series wolud have been primarily lore related, but even they had to fit or serve a purpse conducive to the campaigns you go through.
Lore has never been indepenndent of gameplay even when it as in the driving seat like it was during the RTS series, nor is gameplay independent of lore when it is in the driving seat as it is for the mmo.