Anyone who grew watching Dale Hunter, Claude Lemieux, Kenny Linseman, Glen Anderson saw the rat era of hockey. Dirty as hell. Never hesitate to throw an extra cheap shot out there. Elbow goalies in the head, slash them, whatever it takes. 80s was still bad blood brawl hockey. 90s hockey was faster, more skilled and more violent, especially the impact of hits. Dead puck hockey was too boring to be violent. Maybe Scott Stevens. would try to kill somebody cutting through the middle. Derian Hatcher types. The game became bigger but not more skilled. Once the trap became the way to win, the tone of the game went down, to being positionally sound at all times defensively.
Hockey now isn't all that violent. It's just dirty. Closer to the 90s era, but even faster. The instigator rule is perfect for rat hockey. At least you had to be scared in the 90s someone was going to tag you if you crossed the line.