Yud, when journalists ask you “How are you coping?”, they don’t expect you to be “going mad facing apocalypse”, that is YOUR poor imagination as a writer/empathetic person. They expect you to be answering how you are managing your emotions and your stress, or bar that give a message of hope or of some desperation, they are trying to engage with you as real human being, not as a novel character.
I think the way he reads the question is telling on himself. He knows he is sort of doing a half-assed response to the impending apocalypse (going on a podcast tour, making even lower-quality lesswrong posts, making unworkable policy proposals, and continuing to follow the lib-centrist deep down inside himself and rejecting violence or even direct action against the AI companies that are hurling us towards an apocalypse). He knows a character from one of his stories would have a much cooler response, but it might end up getting him labeled a terrorist and sent to prison or whatever, so instead he rationalizes his current set of actions. This is in fact insane by rationalist standards, so when a journalist asks him a harmless question it sends him down a long trail of rationalizations that include failing to empathize with the journalist and understand the question.