This is just another example of the consequences of their decision to turn this from a “Your favorite blizzard characters duking it out for your entertainment!” game to its own little thing with its own lore, life, and characters.
Now, in traditional Blizz fashion they’re making 90% of the lore they’re making up for a game that doesn’t need to have its own world consist of stuff from outside the game so most of the players won’t know or care about any of it and will just, instead, miss the cool stuff that gets removed to appease the writers.
While it’s sad that those things got removed they aren’t problems. They’re exactly the way they’re supposed to be now that the world is becoming its own thing. I imagine there’s probably going to be quite a few dialogue changes in the future as the lore of the Nexus progresses.