Nonsense. Torture is a very small part of this film and a part that our protagonist is clearly not comfortable with. Saying Zero Dark Thirty is pro torture is like saying Bugsy is pro organized crime. Or more precisely like saying The Aviator is pro being a shut in and pissing in bottles. It is an aspect of what was happening during this time, and one I'm glad Bigelow was not afraid to address.
I thought the film as a whole was very good. Bigelow has shown a gift for developing tension in her last two films, and Chastain was a revelation. Her character was developed really gradually and in an interesting manner, and it was refreshing that her character wasn't a female CIA agent, but a CIA agent who happens to be female. (Which, probably not coincidentally, is how Bigelow wants to be seen: not as a female director, but as a director who happens to be female. That probably won't be the case until there are more mainstream female directors, but that's another discussion entirely.)