Sorry to have to disenchant you, but the underlying paper by Mauro (affiliation: IMF) that the linked article is citing actually only shows that the global Gini

Sorry to have to disenchant you, but the underlying paper by Mauro (affiliation: IMF) that the linked article is citing actually only shows that the global Gini index is going up (less income inequality). And, in the same time-span (since the 80's), the Gini index in the US was also rising, slightly. The problem is that the Gini index is built to be robust against outliers (those 1%). So no, both locally (US) and globally, inequality is on the rise - even if the Gini index is going up in both cases.