I didn’t know that a contested area is suddenly considered winning now.
I do know that it makes you look like clowns though when you lose against some undead archer even with the power of the night warrior.
Nathanos goal was raising the 2 night elves, did he achieve that? Yes.
Tyrandes goal was reconquering what’s left of their home and stopping Nathanos, did she achieve that? Not even remotely
So now you tell me who won