Blizzard going too far is them being them.
I don’t think you can call that a fact, and, cheap score settling is not the realm of a good force. (Mortal scores are, by nature, cheap.) The strict logic of a concept does not mean it is the concept in use. Any story will have a large number of logical paths flowing from any given event, they cannot all be taken.
I would assume the Maghar scenario is mostly the gameplay wanting something and the story fitting it.
With the story presented I don’t think it’s a villain bat of Yrel, it’s showing us the Light. As I’ve mentioned before, True Light is outside the universe, therefore it’s outside time. When the two timeways crossed and contaminated each other it would have been very visible to outside observers.
So my guess would be a more militant Xe’ra in the AU was pushed by True Light, and caused what is essentially a mirror of the corruption of the Orcs (swap in Draenei). The killing of MU Xe’ra was probably used as a catalyst, a “Light” mirror of our timeline’s maddening whispers of the Void. AU Xe’ra will likely hold Velen as an enemy, and possibly Turalyon since he didn’t avenge MU Xe’ra.
In that vein, in the MU, Lightforged are those who choose to join the Army of the Light. The choice, for narrative purposes, of calling the AU force “Lightbound” sets the concept apart to begin with. It is not the choice of the MU, it’s a binding to serve, to be bound… like Domination.
The obvious arc would be that in the AU the Void is not the maddening whispers, it’s the Light. Which makes perfect sense in an alternate universe story system.
(The real nasty question is how far they developed the concept: Does WoW have a true multiverse of infinite possibility? Or is WoW limited to to a multiverse only comprising one each where the different cosmic forces have majority power? Did they just wing this all, and they don’t know? LOL, we know, door #3…
If they were to actually try and make it rational, door 2 fits the cosmic powers already presented. And the story arc would end up going between the different AU’s bringing all the cosmic forces into balance. However, with positing the First Ones, they already damaged this possible arc. Or they could let us all down and the First Ones are only makers of the Shadowlands.)
The WoW cosmology premises on a balance between the different Forces. Like in the MU, when one overpowers the others, it should be destructive to the environment. So it is a safe presumption that the Light taking over on Draenor destroyed the habitability of the world.
The cosmic powers themselves are not mortal beings in the physical universe to feel or know the meaning of ruining the habitation of mortals.
People should not judge characters from other timelines based on their portrayal in the main timeline. They’re different characters which share the same name. They will have wildly divergent views and responses; if they were the same person there wouldn’t be differing timelines.
So, to compact that: AU Draenor has different parties, but the same underlying story events, of MU Draenor.
The question for me is: New gateway of some kind, or does a second Exodar or Xenadar land somewhere? (If the Lightbound are brought over it’ll be a one-off imported army for a patch, not a coherent universe development.)
I still expect a returned Sylvanas to be the spark for Alliance drama when blended with a newly Shadowy Anduin. Alleria already thinks the whispers are telling her to kill her sister, and having Anduin protect Sylvanas is such a cheap road to Alliance Drama.
I do find it rather funny to see people arguing character development as a bar to Blizzard pulling something. They will do whatever the heck they do, the characters don’t matter at all. Bow before the mighty plot, heathens!
Blizzard literally owns the story; whatever the people they hire want to do to it… is done.
(TBH, there’s plot data with no real sense. Arguing this or that small detail from the past as a bar or vindication doesn’t actually say much with everything else slopping around the story.)