Ontario/Toronto already has a lot of folks who are under employed and under payed in Technology. Hence the drain brain to the Valley and USA. I know so many Canadians who are in the US working for companies like AMZN, Facebook, Google, CSCO, etc that couldn't find meaningful work/salaries in Toronto. If these folks are bright enough to work for the top of the tech pyramid in the US, why couldn't they find a job in Toronto?
This is companies looking for cheap labour, plain and simple.