There have been lots of questions surrounding toughness and grit in today's NHL. Some teams have come to the decision to shy away from these sorts of players. Instead choosing to focus on skill and scoring. There has always been a time honoured tradition of grit and toughness being what teams need to win in the playoffs.
The Oilers still have Evander Kane on their roster, but Kane is definitely better suited as a scorer for the Oilers. Losing him for 5 minutes doesn't help the Oilers in the slightest. It will be interesting if the Oilers can return to the conference finals with the reduced toughness in their lineup.