The diplomatic thing for me to say is that if publishers are dressing up other authors as Terry Pratchett clones then they are doing a disservice to those authors. If they didn't dress them as clones but did something different, then those authors could be pioneering in a different sense.
Terry PratchettHis mind worked fast, flying in emergency supplies of common sense, as human minds do, to construct a huge anchor in sanity and prove that what happened hadn't really happened and, if it had happened, hadn't happened much.
Terry Pratchett