I believe that asymmetrical treatment applies. This goes back to Mr. Beaulieu's question earlier.
The first international student is often highly valuable to a class, as is the second. When 50% of students are international, having one more doesn't make much difference to the profit margin. The profitability is already there. Small francophone universities outside Quebec with few international students probably benefit more from having international students than Toronto's Canasta University or Cape Breton University, which have many international students.
In my opinion, quantity and ratio are two parameters that must figure into the federal government's formula for allocating places for international students in the various universities.