That opinion looks correct if you read the below report.they do not want too many outside people in. They can invite some, but not too many. They are not able to handle it if too many people flow into Canada. They will lose the control.
Globe editorial: Saying ‘no’ to the Blue Jays reveals all the other ways Canada has failed to virus-proof the border - https://www.theglobeandmail.com/opinion/editorials/article-saying-no-to-the-blue-jays-reveals-all-the-other-ways-canada-has/
Meanwhile they are not issuing PPRs or COPRs for months now. Only people who are approved befor March 18th can travel ,which is understandable. But I don't understand why they are keeping the draws at bay, as with current processing pace no one will be able to travel before March 2021.May be system itself is not able to ramp up or change according to need of the hour. Pity!!