San Antonio already had the slimmest margin for error of any team facing a 3-1 Finals deficit. Now, the one big man tasked with spelling Victor Wembanyama is battling illness. Luke Kornet’s questionable designation for Game 5 does not reshape the series on its own. What it does is remove the last safety valve on a 22-year-old who is already logging 40-plus minutes per game and visibly running out of fuel when it matters most.