Adam Silver, the commissioner of the N.B.A., said in an interview that the league’s position on China had not changed. He also denied that the league had blackballed Freedom, saying that comparisons to Kaepernick were “completely unfounded and unfair.” “We spoke directly about his activities this season,” Silver said, “and I made it absolutely clear to him that it was completely within his right to speak out on issues that he was passionate about.”