These changes had more to do with geography and TV markets than it did with Winnipeg. I think Winnipeg was just the thing that set this in motion since they haven't had an ideal time to make these changes until now. Teams like Detroit and Columbus have already expressed their pleasure with this.
I see what you're trying to say but how does detroit, Columbus, minnesota benefit from being in a Division with dallas? Is detroit better off today? Did they get their wish? If the NHL made these changes to help geographically and with tv markets then I'd understand but it seems they just messed around to fit Winnipeg.
"Red Wings fans who aren't happy with the realignment plan, know that your GM is. "We're thrilled," Ken Holland said."
"Scott Howson among the most pleased with realignment decision: "This was the best compromise.""
Plus Detroit could still potentially move again to an Eastern conference as they both have just 7 teams at the moment. I wouldn't be shocked to see that happen if the Coyotes don't move or if the league looks into expansion (as the rumors are starting). A simple 1 for 1 switch with Winnipeg and another team would have left a lot of teams upset so I think this was a necessary compromise.