In the entire response, I didn't see a single legal argument. That is essentially an admission that, NBA has jurisdiction but because they don't like the arbitrator, they're going to venue shop. “If Silver were to preside over the instant dispute, he would be arbitrating a case for his boss and ally.”
“Among other things, Tanenbaum has been described as ‘a close ally of Commissioner Adam Silver.’ Silver himself described Tanenbaum as ‘not just my boss as the chairman of the board of governors, but he’s very much a role model in my life.’ “Tanenbaum and Silver also have a close relationship. “In his capacity as Chairman, Tanenbaum serves as Silver’s boss and exercises control over and heavily influences Silver’s continued employment and salary,” the Knicks wrote. The filing, which was a response to the Raptors’ motion to dismiss the lawsuit, focused on several reasons why the court should handle the dispute, rather than the NBA, including Tanenbaum’s current position as the NBA’s Chairman of the Board of Governors.