Absolutely not. I think these letters lack procedural fairness.
The first statement is that people should leave Canada as soon as possible, but later it's mentioned that they may be able to submit a pre-removal risk assessment. The majority of these people, if not all, will be able to submit a pre-removal risk assessment, or they will not be removable because they're from a country that has a moratorium on removals.
I think the letters are quite misleading about what the real possibilities are for them. They're causing panic in the community. I am afraid it will cause some people to return to situations of persecution out of a lack of understanding of the system.