Over the years the NHL has attempted to remove fighting from the game to help players career result in a more healthier retirement, rather than with brain and CTE injuries. The NHL almost placed on a rule in play back in the 2018 season where players who decide to remove their helmets would be given a 10-minute game misconduct, and would not be allowed to return to the game.
The only school hockey fans said screw that, let them fight! Fighting is definitely a luxury fans get to watch, whether it is at home or in person, it's an important aspect of the game.