Napheesa Collier rocked the sports world during her fiery exit interview — and now she’s explaining why.  Sitting down with former Vice President Kamala Harris on Monday, the Lynx star elaborated further on her decision to torch WNBA commissioner Cathy Engelbert in her end-of-season media availability on Sept. 30. Collier, 29, stood by her decision to pull back the curtain and blast the “worst leadership in the world” for poor officiating and stalled CBA negotiations — explaining that the