I can't imagine a sport that's constantly been changing as much as hockey has. Seems like every year people call for some form of change. Baseball isn't like this, and I don't think many sports are in general.
Let's take out predatory hits, let's take out fighting, let's take out headshots, let's bring in coach's challenges, let's start penalizing for bad coach's challenges, let's change how buyouts work, let's change how the cap is counted because Tampa is taking advantage, let's make the salary cap count on after tax income, let's make the ice bigger, let's change how powerplays work, let's change...
I grew up watching hockey in the 90s. Maybe it's nostalgia, but I found hockey much more enjoyable before we started trying to change every aspect about it. I remember all the concerned people complaining how hockey is too rough. Okay, so is the UFC, you don't have to watch it or partake in it. So we changed it and now gone are the series full of the small battles. Like Adam Foote chasing certain players whenever they were on the ice. Or when Detroit had the Maltby, McCarty, Draper line that would actually grind opponents down.
I don't know about others, I still like hockey but don't enjoy it nearly as much as I did before. It has gradually been becoming less interesting to me. Whereas I used to be a die-hard NHL fan before, now I am only a casual fan.
I think through the whole "grow the game" concept is BS and has done nothing but alienate the hardcore fans. Whereas something like UFC has grown by sticking to its roots.