I knew straight from the title you were referring to Valenti. He is a professional troll. Any team (or sport for that matter) he does not personally support he craps all over it and then personally insults anyone who dares to have a differing opinion. I absolutely refuse to listen to Valenti when he brings up Michigan football or basketball. I know he is going spout off some complete nonsense that has no place in reality, while giving his favorite teams/players (Michigan State and Boston) a pass.
I actually don't hate Valenti's overall "act", and I'm a Michigan grad! I follow him on Twitter, and I've seen him harder on MSU that the vast majority of the State fans, and I've seen him praise Michigan where appropriate. It doesn't even bother me that media personnel have inherent biases, so long as they own up to that. Along those lines, I suppose if he makes it regularly clear that hockey isn't his thing, then so be it.
I just reject the premise that this isn't a big sports story right now. While the Tigers have been good, the only other Detroit championship in a "major sport" since 1990 was the '04 Pistons, and that team is just a disaster right now (and also not playing). What the Red Wings are doing right now is a huge HOCKEY story in both U.S. and Canadian national media outlets, so I think V & F are delusional if they think there isn't a critical mass of Detroiters that are consumed by it also.