Actually my position is that Dummett being shocked is as much a fact about Frege as the fact that "the sky is blue" (also interesting) is a fact about Frege.  Tkuvho, however is on a crusade against anti-semitism, and feels that the article needs something POV that tells the reader that Frege needs to be condemned for being one.  Apparently merely stating that Frege is an anti-semite based on the contents of the 1924 diary and letting the reader be the judge isn't enough.