It's not only inconsistent with the 1951 convention, but perhaps of greater salience to the people here, it's inconsistent with the purposes of the Immigration and Refugee Protection Act, which is to see that families are reunited in Canada.
It is well demonstrated through empirical evidence across jurisdictions that integration happens most effectively when families are reunited. Bear in mind that the people who are subject to this five-year limbo and ban on family reunification are people who have been determined to be refugees, people in need of protection. These are people whom Canada has determined to be in need of protection. To deny them family reunification, as I understand from the minister's comments, is designed to punish them.
The question then becomes, why are we punishing refugees?