I would agree with you if they were doing idiotic things like rioting or fighting in the stands, but these people are just cheering for their team. To call them a "fucking joke" is ridiculous, and to call an entire group of people "whiney douchebags" is going a bit far.
Why can't PK Subban talk about winning the Cup? He is in the playoffs and currently 2-2 against the defending Stanley Cup champions after watching his team beat the #1 team from the East in the previous round. I still don't think the Canadiens are going to move on, but I would be very optimistic if I was on the Canadiens and had just evened the series.
I think the focus shouldn't be on fans or on "missed calls" but instead on the action on the ice. Instead of worrying about fans that are bugging you, why don't you instead talk about what the Penguins need to do to win the next game. Montreal was really outplayed in that game, but Halak was truly amazing.