I've been following this team for more than 40 years and not once have I wanted them to not make the playoffs.
Only one team wins the cup each year. 3 teams "tank". EVERYONE else is in the middle. it is COMPLETELY unrealistic to build up a core to see if you can win a cup then the moment you realize you're not, you blow it all up with a fire sale to get draft picks only to do it all again. I don't know what fantasy world you people are coming from but this isn't your video game.
Live your life now man. Don't be a sourpuss all your life except for that one winning season that may never come. Moments are fleeting. Life goes on. The next season will come just like any other. That feeling you get from that one season where you're cheering the playoff rush, on a high in the offseason and have that sense of a repeat early in the next season, that feeling will NOT make up for being an asshole the rest of your life.
So go have a beer. Cheer with your mates and have a good time on Thursday. And then the next game, and the next. Maybe we'll win, or maybe we'll lose, but that is what life is about.