The NHL rulebook provides a lot of discretion for officials in calling or not calling too many men penalties. The question's if this situation escalated to the must-call point. (And no, the game sheet doesn't prove that.)
Colorado became just the third team to record a Stanley Cup Final shutout by seven goals or more, and also just the third team to score three or more goals in the first period of the first two games of a Stanley Cup Final.
NASHVILLE, TN – JUNE 11: Kris Letang #58 and Sidney Crosby #87 of the Pittsburgh Penguins celebrate their Stanley Cup victory following a win over the Nashville Predators in Game Six of the 2017 NHL Stanley Cup Final at the Bridgestone Arena on June 11, 2017 in Nashville, Tennessee. (Photo by Bruce Bennett/Getty Images)