The Islanders’ star player, center John Tavares, has been enduring one of the longest scoring slumps of his career with just 10 points in his last 20 games. But while this would have been impossible to overcome in past seasons, the current Islanders are shrugging it off and winning anyway.

It’s been five seasons since Tavares has endured such an extended slump. His only worse 20-game droughts in a single-season occurred in the 2010-11 (seven points) and 2009-10 seasons (5). Then, the Islanders were just 2-15-3 and 6-13-1,...