Of course, it was not polished, but the experience was already significantly better than without downed state. Gameplay went from "let me shove these two blobs into each other and see which one is bigger" to actually being skill based. A part of the community will be upset, if Anet removes downed state, because they will need to adjust their build/ team composition, step up their game and give the developers a bit of time to do balance iterations. However, when all things are said and done, this game mode is going to be better and increase in player base.
Some initial changes could be: