Canada's history came as international students are being blamed here for their wish to bring family with them. A mature student can't concentrate properly on his/her studies if their loved one or little kid is far away from them. And talking about the intention to stay permanently, each university has a separate page on their website explaining how an international student can settle in Canada after studies. Some universities even have consultation services for that. How would you describe that? Also, Canada should omit this double standard, one side you say having a double intention is not illegal but on the other side, students have to prove that they will go back after studies. Quite funny.
In every developed country, students have always been welcomed to stay after their studies. Even Scandinavian countries that do not have a formal immigration pathway allow international students to stay after their studies to be benefitted from them.
Finally, don't freak out if any student wants to bring his/her spouse or kid. If possible, help them but don't bully or abuse them. As far as I know, being a Canadian does not give you a universal right to criticize anyone wanting to come to Canada.