Because, even as a supporter of his, I don't think Dawkins is firing on all cylinders here. He misses about half a dozen open goals. Although to be fair, it's a tight item and the guy hardly gives him a chance to get a word in.
Is he tired? Jet-lagged? Just fed up with having to justify himself yet again to yet another sceptical interviewer with nothing to offer? Or is he just dumbing down for the interviewer (who comes across as a complete numbskull jerk)?
Disappointing, when he has been on such coruscating form elsewhere in the US: e.g. here, for example.