Could the current policy change if we had a change in government? Possibly. Of course, I am somewhat partial since I am the French Language Services Commissioner for Ontario. It is my job to ensure that language rights enjoy better protection. So the question holds the answer, to some degree. Yes, of course, a law would provide better protection and ensure the permanence of that bilingualism.
I read an argument wherein it was claimed that it is difficult to find bilingual judges. I even heard a former Newfoundland and Labrador attorney put forward such an argument. A judge of the Supreme Court of Newfoundland and Labrador, which is a court of appeal, has just been appointed and is bilingual, which is very good. This shows that there is a way to find quality jurists who understand both official languages and will be able to follow a trial or a hearing in both languages.