I disagree. Some people have qualms with linebreeding, but my breeder linebreeds three generations back. As long as the breeder has a firm grasp of genetics and has extensive knowledge of the lineage and the dogs are of exceptional quality (and completely free of genetic maladies), then there should be no problem with line/inbreeding. I guarantee you that all the top show dogs are in some way shape or form quite inbred I'll PM you with the rest of the info.
Edited to add: I'm not so sure I like the breeder you just posted. There aren't any significant red flags, per se, but she does tend to focus on why you should buy their puppies and it disappoints me to see that she has just one non-import sire who isnt championed....Whatever. Some breeders focus more on Sch. rather than conformation.