I really think this year is the summation of the leagues efforts to remove "tough guys" and "fighting" from the league.
The instigator rule stopped large scale retaliation to these exact types of plays. Teams removed tough guys from their lineups who would know to sacrifice themselves via suspension or fight if a player went after their captain like Domi did to Barkov last night. Now you see scummy plays, Tkachuk on Guentzel and Marner, Mikkola's board, Domi's board, Hagel on Barkov, Bennett on Stolarz, Stone sliding into people's knees, Roy's crosscheck. This has been one of the dirtiest playoffs I can remember. I can only assume that's due to the lack of concern of any sort of punishment from the league or the other team.
The league has stopped suspending guys for dirty play. IDK why, but their tiny 5K fines are absolutely not influencing anything for a player who makes 4-5M a year. And now that tough guys are gone, these scummy middleweights are just running around giving cheapshots at the end of every game.
The league created this. If this is 10 years ago when 4th lines were bigger, and the code really mattered, Domi would 100% get his head knocked in to start game 5. Bennett would have already fought or been boarded by a 4th liner for the Leafs. Instead, these guys face zero pushback, and just do dumb shit over and over again.
Ridiculous what Bettman has created. Remove the instigator and start handing out 3-5 game suspensions in the playoffs for unnecessary plays like what Domi did