People bang on the glass at hockey games all the time. Is it annoying? Sometimes I guess. It's just one of those things that a handful of people think they should do when they sit that close. When I first heard about this, I was thinking that this guy was just POUNDING on the glass. But after watching it, it seems like it broke wayyyyyy to easily.
No idea if that fan got tossed out of the game or not. If I had to take a guess i'd say no though.