I definitely seen more liberties taken with Hemsky, Comrie, Gagner, and Hall than I have seen for McDavid, Drai, or Nuge. I'm not sure how much of that is due to the game changing, but people taking liberties with our players is pretty infrequent *knock on wood*, I know Elias Pettersson had a lot of liberties taken with him this year, even beyond the notable ones, just watching their games I could see a difference in how he was treated compared to McDavid.
The players say their is value in a deterrent, I figure the people who play the game know better than us. I'm guessing very few are deterred into not playing someone hard, there just tends to be a few players on every team who are having trouble justifying their existence on the team due to a lack of offense so they look for other ways to make that up, in some cases its penalty killing, some times it's head hunting the star player, and in some cases its fighting. Having a fighter on your team gives them one outlet to prove their worth that isn't hunting down your star players and this isn't saying they'd rather fight just that the availability of option B leads them to pick option A a bit less.