Actually, Tzipper's main point was that the organ story was complete nonsense, but that it was not antisemitic, and that drawing the attention of everybody to a story that would otherwise be ignored was at best counterproductive. (I skipped the passages where he explained why it was not antisemitic partly because I wasn't convinced, but mainly because I thought that it was not really relevant for his main argument. I should have made it clearer that I was quoting unconnected paragraphs).

As for the lack of translation, I'm not sure. I suspect that it's because it's a blog, not part of the main paper, because they certainly have no problem with translating Levy and Haas.