Of course, silly me. It was about trying to create opportunities "for suitable scientific research so that the hidden and unhidden angles of this most important political issue of the 20th century becomes more transparent", "creat[ing] an opportunity for thinkers who cannot express their views freely in Europe about the Holocaust".
The Iranian Foreign Minister said of the conference, "If the official version of the Holocaust is thrown into doubt, then the identity and nature of Israel will be thrown into doubt."
How foolish of me, clearly I got the wrong end of the stick.