That’s a lot of misconceptions in one post. Goy is Hebrew. Yiddish contains a up to 30% Hebrew vocabulary. Contrary to your claim all religious Jews had knowledge of Hebrew even if they did not speak it as lingua franca. All the prayers are in Hebrew, the Torah is in Hebrew. Hebrew was known in Yiddish dialect as Lushen Hakoidesh, which translated word by word means tongue the holy, i.e. the holy language as opposed to Yiddish which was known as Mamme Lushen (mom’s language). The word Goy means nation. If Rabbi Ovadiah Yosef calls non-Jews goyim it’s not because he was a Yiddish speaker. His official name was Abdullah Yusef (Abd Allah is Ovadia in Hebrew) and he was born in Iraq, only one of many, many countries in which Jews were unlikely to speak or know Yiddish. They spoke and wrote Judeo-Arabic, which is, like Yiddish, written in Hebrew characters.
What a shame you got side-tracked into discussing whether hasbrats is anti-semitic or not. Art Spiegelman portrayed Jews as mice in Maus and I suggest anyone who is offended by the word hasbrats see the movie Ratatouille.
To return to the main subject, this ground-breaking conference caused a lot of ruckus when it was announced for the first time several weeks ago. Im Tirzu and a Knesset member tried to get the Land of Israel Museum to change its mind about hosting it, following which, the museum made demands for additional security from Zochrot, that it knew the organization could not provide. At some point its future at that venue looked dicey, but a solution seems to have been found.
A Times of Israel hasbarblog gives you its side of the story: http://blogs.timesofisrael.com/conference-cancelled-but-questions-remain/