Unlike many leagues, the NBA has gotten ahead of the curve in creating an atmosphere in which the decisions and calls of referees late in games are explained in the days following. The league issues Last Two-Minute Reports (L2M Reports), which detail every call made or not made in the final moments of a game.
On Wednesday, Dec. 30, Paul George appeared to be fouled on the Pacers' final play of the game, a lob pass defended by Jimmy Butler. Sure enough, the next day when the L2M Report was released, it stated that Butler had made contact with George's arm during his shot attempt; what's categorized as an "incorrect non-call," or an INC, by the league.