I would agree with you , as one would just need to redo medicals and maybe submit PCC to prove for criminal check again.You didn't read my post. I said they are not providing COPR extensions right now. Yes you might have to redo your medical but not the other stuff you mention. The most important point is, if you don't feel comfortable traveling right now then don't travel.
Show us a copy of one of those letters to back up your statement please.
For sure no job or lease would be required , if so so many would loose their PR