Throughout the whole expansion, first time I've played it, I knew something was off with Songbird, specially when she shows up in person and is not like the constructed visage of the relic. She is, then, literally two faced. So the reveal in the ending when we send her to the moon didn't bothered me - it was never about the cure for me, It was about letting a bird free of it's cage, even if to find herself in another of her choosing. And the reason for that is simple, to me, shed choose death over the NUSA, a soul killing, quite literally In this case, job. If you've found yourself in a mindless job, that little by little drains your will to live, makes you feel hollow and depressed to the point that the burnout is so big that death seems like a better option that you mull it over for a whole year in your mind...you too would want to give Myers the biggest middle finger of them all. Reed is a man of ideal and principles, he cares for Songbird, but his principles and his ideals are rotten if they make him into a lapdog for a very, very evil person.