Some are already in Canada. There's an annual cycle of temporary foreign workers, as you know.
To your questions on this issue, you have to remember that in 2020, when the pandemic arrived, it arrived quickly. Having the authority to go inspect for quarantine.... This program was not a health program. It was not built to do inspections for quarantine. While developing that, people were coming in, so there was no luxury of thinking in advance whether it was better to do it like that. It was reacting to a crisis and trying to manage it the best we could.