Why Wasn't This An Old God Expansion?

[Denona-khazgoroth (Denona)]

@Drahliana-earthen-ring

or to be more accurate every expansion from classic onward has been part of the Old Gods metaplot which began in the Gate War in Silithus.

TBC, WoD and Legion (outside of emerald nightmare + random naga) were not old god focused expansions in a primary or secondary way.