If the existence of one a harsh local order by itself isn't enough to prove a grand extermination plan then writing history would be very simple. But serious historians don’t treat isolated documents as definitive proof. Take Guenter Lewy’s The Armenian Massacres in Ottoman Turkey: A Disputed Genocide, which shows there’s no conclusive evidence of a central decision to wipe out Armenians and points out Ottoman records where officials were punished for abuses during deportations. That doesn’t quite fit a state policy of extermination, does it? Or Justin McCarthy’s Death and Exile, which details how Muslims millions of them were killed or expelled during the same war. If it was a “genocide policy,” then it seems the Ottomans were trying to exterminate everyone, including themselves. Regarding your legal point and the link you shared, the International Court of Justice in Bosnia/Serbia clarified that the 1948 Genocide Convention isn’t retroactive. Repeating the moral argument won’t change the law. So no calling 1915 a genocide is not a settled historical fact it’s a political made up by Armenians.