Eh, it seemed the writers were beating us over the head NCR was screwed up.
They still seemed the clear-cut 'heroes' of the story, just that they weren't these flawless beings and have made some bad mistakes in the past.
I just think that although NCR wasteland would be duller it is a safer, freer and better wasteland that the other people put forward.
Caesar's Legion: Obvious reasons why this would be a terrible outcome
Mr House: although I think he may run the wasteland well for a period, it is completely undemocratic and is more tyrannical than any other option (Caesar's Legion is a meritocracy and NCR is a democracy). Plus, Freeside demonstrates that he isn't always too sympathetic towards humanity
Independent: though I understand the desire for more freedom, I still think it benefits people to be under a democratic government compared to no state. Plus, it is likely to end in another tyranny with the Courier as head.