The story is interesting. But it's weird that the Mane 5 doesn't reacts to Discord's leaving. They are his friends too. That was the reason they were soo mad at him for bringing the villains back. If it was a villain who brought the villains together than Mane 6 would be annoyed. But the way they were that mad at Discord shows that they are heartbroken. Because he was their friend and they trusted him.