your point very valid. however , cannot travel is very subjective.
MOST COUNTRIES including India , have limitations only on receiving flights , not on boarding flights to outside the country.
some people landed in the lest few days using COPRs despite the ban.
straight technically speaking most of us can land !!!!.
but if you looked at it in terms of : housing , jobs , quarantine , shut down in Canada and the ability to return back home in the near future , it will be a very difficult situation to land at that time. the big question : this will be considered and extensions issued ???
or only people from countries that literally shut down the airport , like Kuwait ,Peru , etc ???