[tyranuus]

Yep, I did like it, it was a few years ago I watched it now, and I'd still put it up there amongst the better series I've seen.
I also dont particularly disagree with your line of thought, I also think that was Lucy/Nyu (Kaede) behind the door, however it was left ambiguous as with many other things, because animation studios like that sort of ending, and it left room for a sequel.