I'm 37, so I'm certainly not a boomer. I did, however, grow up watching hockey in the 80s and 90s when huge hits and bench-clearing brawls were a part of the game.
Given what we know about concussions, and the current speed and size of the game, it's not really possible to want those aspects to still be in the game without also wishing massive injuries and disability on the players. This is also a reason why American football will likely be dead or unrecognizable within 40 years.
I will say, though, that I miss those parts of the game and don't watch it nearly as much as I used to with how the game has changed. If you look at hockey-reference.com, goals\game has been within a 2.64-3.02 range for all but one season since 1998. The dead puck era never ended. Players are too fast, big, and skilled. Goalies know every angle a puck can possibly go based on a player's stick and body position. The game has been analyzed to the point where system play can consistently lock the game to under 4 goals\game. The exciting thing about hockey is big saves, hits, fights, and goals. Because of the evolution of the game almost all of those things have been limited.
The natural evolution of the game has turned it into soccer without the team identities and cultural connection that makes soccer the biggest sport in the world.