Ben Stiller , lifelong Knicks fan, understood the gravity of the New York team’s historic Game 4 win more than almost anyone else in the Garden on Wednesday night (June 10). For decades, he’s been a courtside fixture, and the love is a deeply rooted family affair, as the Severance director previously attended games alongside his late father, Jerry Stiller . As such, we should probably listen when he credits Wu-Tang Clan ’s halftime performance as the dividing line between the decidedly dire situation of the first two quarters of Wednesday’s game and the explosive, history-making comeback the Mike Brown-led team pulled together in the back half. “The start of the comeback,” Stiller, who’s reportedly working on a Knicks-featuring documentary for HBO, said when sharing a clip of the Staten Island collective’s performance, which included a Knicks-ified rendition of “Wu-Tang Clan Ain’t Nuthing to F’ Wit” and more.…