That's a good question and I think a good illustration of what I was getting at RE: the problems with branding a writer with a single theme. Because I don't think The Metamorphosis could really be described as "kafkesque" in the bewildering bureaucratic sense, and yet it is probably one of his better-known works.
I mean the metamorphosis describes being broken down into nothing over the life of you career. Sounds a lot like bureaucratic sense of kafkesque though maybe i need to revisit this.