I'll use your rhetoric and go the other way, having a team full of Americans winning all those Cups would have never made the Montreal Canadiens the cultural institution that it is in Quebec. The team would be popular but it's would not be part of the cultural fabric.
Like it or not, the cultural aspect is an integral part of the team, as much as the winning tradition. You don't get to pick one or the other, and it goes both ways.
We both agree that talent and winning matters though, but sucks for you but the cultural aspect matters too. It's no coincidence that Quebec stopped producing talented forwards after Lafleur retired and stopped being a goalie pipeline after Roy got traded.