calling it airport fiction isn't a dismissal per se. Some people like airport fiction, some people like sci fi, some people like rom coms. It's just a label and not necessarily a pejorative - or "wanky" - one.
Fair enough, it's just that when I hear people use that description, or terms like it, a lot of the time it's in a slightly sneering manner or articulated as an admission of something, intellectual debasement or whatever.
