How did the Congress of Berlin change the Armenian reform demands made after the Russo-Turkish War?

Following the Russo-Turkish War of 1877–78, the Treaty of San Stefano included a provision requiring the Ottoman government to implement reforms for its Armenian subjects and guarantee their protection against the Kurds, with the threat that Russia would otherwise maintain its military occupation of Turkish Armenia.1

At the Congress of Berlin, this demand was significantly softened. While the "Armenian question" remained a persistent factor in international politics, the specific, enforceable guarantee of Russian occupation as a mechanism for ensuring Armenian protection was diluted, shifting the diplomatic landscape as Great Britain assumed the role of the Ottoman Empire's protector for the remainder of the century.1