I think there is no real need to refer to any provincial legislation when we're talking about the objectives of a federal act. In this case it's illogical, because the act in Quebec favours one single common language for Quebeckers and accommodates the rights of anglophones, mostly directed by the fact that the Constitution of Canada creates constitutional rights for anglophones, so why would we ask l'Office québécois de la langue française to interpret the act or interpret any kind of action as being favourable or unfavourable to the minority when its object is not bilingualism and is not the equality of both languages?
Evidence of meeting #37 for Official Languages in the 44th Parliament, 1st Session. (The original version is on Parliament’s site, as are the minutes.) The winning word was c13.
A recording is available from Parliament.