I don't agree, I think that it's beneficial if the Habs can get local, and yes French Canadian, players to contribute in a constructive manner to their roster. Nominally, French Canadians are a majority in Quebec, we should only evaluate everybody on skill, and we live in a post-racial society, but ...
In practice sports are part of civic pride and it's good to see communities represented. It's not altogether different from how American sports teams probably benefit when they have Black and Hispanic players on their roster -- it helps them reach out and grow their fanbase, by including Black and Hispanic fans, and giving them a favorite player as well. Meanwhile, English Canadian fans in every other Canadian city get to watch English Canadian players do well, over time of course.
Second, if there are multiple good French Canadian players on the roster, the extra media attention gets diluted and that reduces the pressure on that player. If there's only one Quebecois player on the roster, he will be stalked by RDS/TVA after every period, that's no good. You guys might not like this second argument but it's a fact of life.
This doesn't mean that I want any particular player pushed above their level of competency, as happened with Desharnais, Danault, and Drouin. I want players to play at roughly their level of competency, and ideally, there should be a few French Canadian players on the roster in various roles.
Right now,
Drouin, top-6 winger
Danault, middle-6 centre
Hudon, middle-6 winger
Ouellet, depth dman
Despres, depth dman, with potential to rise up the charts
This is not a lot if we're honest. It can only hold the team back if they're mismanaged, which is what would happen under Therrien.