That was one of the worst endings to a game ever. And in a way, the anger over that ending was a compliment to him that he didn't realize. If his writing wasn't so well done, and the story so well done, nobody would really care. But I loved the writing, loved the story and he made me care about these fictional characters, and then threw in a story where you couldn't save everyone and killed one off, especially the girl that had been abused.
But... it really was a compliment to his writing when you think about it.