> The commentator then asks Anand something along the lines of "did you think through all of these complications?"
The question was "did you try really to calculate [...]?" which is quite a bit different that "did you think through all of [...]?". The latter is implicitly asking if perhaps he was not successful at seeing through the variations (which is a reasonable question). The former is asking if he even tried, which is not a good question.
He had come out of the opening with a significant lead in time, and near the end he spent a very long time thinking, so much that he became behind on time. Of course he was calculating variations. It is quite reasonable for him to give a snippy answer to that question.