albeit, if there were shorter time constraints for each period, I would say the team that wins in that smaller time constraint is better even though the meta changes, it becomes less a game of endurance and more a game of holding peak performance as long as possible. imagine 4 minute periods. it definitely changes the game but it is still all in all the game, goals are still scored the same way. (please note, I know extremely little about hockey... but I think the analogy works, if it doesn't please let me know.)