I wouldn't construe this as suing the government, frankly: It's really about taking your problems to a court and having your rights adjudicated.
Thinking about this as suing the government is kind of where Mr. Harper came from, back in the day. I think it's wrong. I think that we have to look at this as a way of supporting and maintaining the essence of the Charter of Rights and Freedoms, which is really a key to our democracy. It behooves the government, and is in the best interests of the government, to honour and respect the Charter of Rights and Freedoms, and if the government gets it wrong at any point, we should know about it and they should know about it, and we should be able to take corrective action.