You still haven't really given a good reason as to why this would no longer be the case after icing someone who is willing to fight.
I've given a good reason a few times. Fighting can dial down the temperature in games that are starting to get out of control, after a team is being dominated.
Everyone who knows hockey knows this, and the Avs are starting to dominate every team they play now, and those teams are responding by taking the Stars gameplan of playing dirty and targeting the Avs players with hits to slow them down, then getting frustrated after the Avs keep scoring.
You can argue that fighting isn't a deterrent (I don't think it's a strong deterrent but I think it can be one) but you can't argue that it doesn't dial down the temperature, because this was proven time and time again when fighting was more prevalent.
I don't know why everyone thinks you need to be a good fighter to be a deterrent or to dial down the temperature. That's not how it works and it sounds like some of you either haven't been in a fight, or it's been too long to remember.
Even if you don't think the guy on the other side is a good fighter, it's still not fun to get punched in the face. And the unknown of whether he'll get a lucky shot and KO you in front of the entire stadium and all the fans watching at home can be a successful deterrent to a player/team letting their frustrations get the better of them by stepping over the line with a questionable hit.
Just by having someone the opposition knows won't hesitate to drop the gloves, even if they're not great at it, can give someone enough pause to keep their emotions in check and not do something stupid. Without Calvert, the only guys the Avs have like that are Landy and Kadri, and you don't want them risking a broken hand, or taking them off the ice for five minutes.