Fictional pseudo-histories, better called expanded universes, are one of the great scourges of modern nerd pop-culture, and most specifically gaming both digital and cardboad.
I cannot say who it is that is being misguidedly mimicked (most likely Tolkien), but the effect is distinctly clear: Unlike the original works like Tolkien's books, or Dune, etc, what the nerddom has latched on to is the concept is the expanded universe, a severed malignant and sterile outgrowth of narrative divorced of the actual purpose of worldbuilding in storytelling. The 'lore' and 'setting' as a pseudo-history contribute *nothing* and mean *nothing*, and often do work counter to rendering works with substance. Adherence to a rigid fictional canon is fundamentally a hollowing exercise. The purpose of worldbuilding is to serve the story and what the story means. Worldbuilding as an exercise in itself serves only to rob storytelling of its function and render it to imaginary "facts." Worldbuilding must exist only within the context of individual fiction, and work towards giving that fiction substance.
Keep your shit "storytelling" faggotry away from muh lore!
Robbing storytelling of its function and exposing it as mindless droning about imaginary feelings of imaginary people is god's ordained duty.