There is a very good case for there having been a restriction in the 1960s, 1970s and 1980s, but there's a diminishing argument for its validity going forward. The French language in Quebec is in good shape, partly because there's a lot of vigilance to support it. We're not against that, but it's going to go some day. It is a violation of civil rights.
Evidence of meeting #3 for Official Languages in the 43rd Parliament, 1st Session. (The original version is on Parliament’s site, as are the minutes.) The winning word was students.
A recording is available from Parliament.