What this really is, is the realization that scholarship which acted as the underpinnings of the Zionist world view has lost the ideological war, because it has been proved to be so full of shit, and bias, and manipulation of the actual historical record that it simply can not stand up in an academic institution without people laughing there asses off. Now because they have lost the UJA and its allies are trying to force the Universities from spreading the news through intimidation, innuendo and slander.
What is happening is that misguided youth who have been forced fed Zionist propaganda by their parents are now being put in a position where the bullshit they were taught is actually analyzed from the point of view of a scholastic study of the evidence, and they are upset that their cherished views of Israel and Zionism, are filled with lies and deciet, and they are upset because they are having to fact their own self-doubt. Rather than recognizing this doubt and dealing with it, and the information that causes it, they prefer ignorance.
Even real Zionist scholars like Benny Morris, now freely admit that the 1948 "war of independence" was really and "ethnic cleansing". But most of the old guard Zionists still want their children to be taught that the Arabs left of their own accord.
You are right. York should sue the UJA, but they wont.