So what's the Horde's excuse?

Resolution of a story is the ending of a story however rit ends.

Usually in history there’s no such thing as “justice” being a consideration . Things happen and then other things happen. Whoever wins makes demand of the loser.

That is not the case here. The Alliance didn’t win and the Horde didn’t lose. Instead they both gained a common enemy when she upended the world of life and death.

So as it’s been stated before the story of BFA IS RESOLVED.

Is it a nice, neat, clean, and just resolution? No… it’s the ending of one chapter and the opening of another.

The Answer is that for now the war between Horde and Alliance is OVER… until something kicks it up again.