Thinking pragmatically. There's three parties involved in the discussion.
1. Owners
2. Players
3. The League.
First. From the owners perspective, logically thinking. Fighting is an unique marketable aspect of the game. It makes people love the player who brings it, and bring fans to see the player.
A League that in the states has to fight against bigger sports, it's popularity rising. This would cut from the audience, it's guaranteed. And please don't say "we don't need them" pretty sure all of the before mentioned parties do not feel this way. There might be 1-3 rogues that don't care for it but majority rules. The owners have a huge say in this.
Second. The players. They want it in the game, if they did not want it in the game, it would not be in the game. It is that simple.
I'm quite certain one of the reasons is this;
It feels like Minnesota got a pretty big boost from this amplified by the audience.
Also because of this;
You can't let this happen to your top guy. And not thinking what could be, staying in the present. Injuring a star player like this, is not punishable by the dops. 2 minute penalty wont affect this at all.
So you need to acquire a guy who'll punch anyone in the face if you do that to your star player. Which is exactly what everyone knew was gonna happen and it did happen by one of the biggest if not the biggest franchises in the game . After this happens, countless stories of teams "growing an inch", "being more loud in the bench", "having more room on the ice". You get the point.
Third. The balancing governors who act with and between the first two, they wont shut it down by themselves. Unless something unimaginable that no one f***ing wants; happens.
There's a lot of ways that could happen and so far all of the most gruesome injuries in the game non have not involved fighting. Talking about career ending things and such.
As of right now, I believe the people who are for banning all fighting are by far the minority. And as such have very little power to influence the decision. The NHL they're a business, they don't care if they don't have to and have no problemos sweeping things under the rug etc.
Personally I like fighting, I do not like staged fighting. For me it's in a good place right now, spontaneous with a couple of fossil goons. But it is not the end of the world for me if they ban it, there's pretty much zero fighting in playoffs and it's great f***ing hockey. Not sure how you could replicate it regular season wise, maybe cut out 20 games?. But right now it is so deeply rooted in the cultural history of na game that I just can't see it going away in the near future.
As long as the players want to keep it in the game, I do too.