Post secondary institutions are using international students as a source of funding, so the institutions should ensure there's reasonable housing available for the people they're making promises to.
From a summary of the national housing accord:
Colleges and universities should be given funding and instructed to build on-campus student housing to support a rapidly growing population of international students or risk losing their status as designated learning institutions, which would eliminate their ability to bring in those international students.
Some schools are doing a great job, but most don't.