The NHL Player's Association (so the PA in NHLPA) is the organization that collectively bargains on behalf of the players in the NHL. That's why all of the players were in the game, but the NHL logo, team logos, and team names weren't.
The NHL Player's Association (so the PA in NHLPA) is the organization that collectively bargains on behalf of the players in the NHL. That's why all of the players were in the game, but the NHL logo, team logos, and team names weren't.