In an interview with Yusri Al-Jindi, the writer of the series, he denies that the series attacks Judaism (and, for some reason, Communism.) Instead, he explains, the series simply describes Jewish attributes - how they destroy the societies they live in, by creating animosity and reneging on agreements, and so on.
See? He has no problem with Judaism, only with Jews!
Al Jindi describes it as "the most important historical work of Arab drama in memory, because it uncovers the tricks of the Zionist movement for hundreds of years," and he does not dismiss the idea that the Zionist movement have to do with what is happening on the ground in the Arab Spring in general, and it has an essential role in the political problems in each country.
Al-Jindi also went on a bit of a tirade accusing the Muslim Brotherhood of working with Israel and the US to destroy Egypt and work against the Egyptian people - something that fits in well with the message of "Khaybar."He noted that it is being shown now in all the Gulf countries and Egypt, and it is being dubbed in Turkish for a future airing.
If you have any doubts about how accurate the series is, here is a screenshot from episode 3, with a Jewish leader sitting in a chair with a Star of David - which was hardly a universal Jewish symbol at the time. In fact, Muslims have accused Jews of stealing that symbol from them!