If the virus were to spread there, as quickly as it has in other places, I can see why that might be necessary **if** moving things through Parliament can take awhile. We have an Emergency Measures act which allows special temporary measures to ensure safety and security during national emergencies. Although any temporary laws made under the act are subject to the Charter of Rights and Freedoms. And each Municipality has more power to lock things down as need to help control spread in their own immediate area so they don't have to wait for the Premier of the Province to authorize things.
We have 3600 cases in my province and they've put all restrictions in place up to the point of ordering a shelter in place (right now they're asking people to do the right thing, and counting on the majority doing so but they do have the power to issue tickets up to 5K for people who refuse to follow social distancing rules) but even with all that in place...people only leaving home for groceries, medical appoints, a walk around the block or working an essential service, they will expect we will have 80,000 confirmed cases by the end of April.