Politically incorrect
Islam is an untouchable for libtards and progressives (and of course, for islamists) and therefore, a topic which puts islamic terror organizations like the Ottoman Empire in a bad light is gonna be "discredited".
Unfortunately for islamists and turkish fanatics, the Armenian Genocide is a crime in their history, and they have to acknowledge that.
Q: What happens if you get a gigabyte? A: It Megahertz!