,i know blizzard can do the hell they want, they can crete new lore to justify bullshit, im not saying they can't, im saying this should not be encouraged.
Lore and gameplay are different points of view, so even if you do something in you gameplay don't mean nothing in the general lore, thats pretty much the artifacts and the Garrisons.
Sure ruin the immersion, but at least most of times inlore will make sense, like i said, it is more worth to bring things who don't conflict in the current lore and the gameplay, let be more fluid( thats why we have Void and not high elves, part from the lore problems there is the gameplay problems)