There is no standard definition for a winning team.
How would you define a winning season in hockey. Every team above 83 points? 3 point game screws that definition.
Hockey is an interesting situation for defining what a .500 team is. Point inflation from all the 3 point games has confused the issue.
I think the best way is to figure out how many points are awarded for an average game.
I think it's something like 2.2 points awarded for each game over the course of an 82 game season.
That means to be a .500 team you need to get 1.1 points per game and over an 82 game season that works out to about 90 points.
So, in my opinion, a .500 hockey team is one that gets about 90 points a season although that number would change year to year depending on how many points are awarded for an average game.
It would be much better if the standings were Wins Loses and a 3rd column for bonus points for points earned for overtime loses.
If games won in overtime appear in the win column , then games lost in overtime should appear in the losss column. It makes for more honest standings.
What NHL standings are now is a distortion of reality, lies, and some sort of weird Disney fantasyland that does not reflect what actually went down.
Unfortunately, that's the way Gary Bettman wants it.