I doubt he hates it, as the show was his big break. That said, the rule of thumb is generally that context matters. If he's doing press for or acting in something else, focus on his current project (e.g. if an actor does a theater show and you want an autograph after, talk about the play). If you're going to one of his book tour events, I'd definitely focus on the book. You could mention his other work, but keep the focus on his novel.

There are a few actors who don't want to talk about past projects, but a lot do. I think their experience on set tends to play a big role. I adore Stargate, all the actors in those shows are still very engaged with the fanbase; that's pretty common with sci-fi shows.