I agree with you that the Supreme Court's broad interpretation of section 23 of the Canadian Charter has largely benefited francophone minority communities outside Quebec.
Incidentally, the judgment rendered in Quebec last week on the Act respecting the laicity of the state surprised some people, who apparently hadn't followed case law developments, particularly the Supreme Court of Canada's judgment actually acknowledging the anglophone minority's right to manage its institutions. I think this jurisprudence has mainly benefited francophone communities.