The person who asked, his parents got medical passed without doing any pgp medicals. So thats why I shared thia policy because i thought IRCC might have given them exemption under this policy.
You are right that they would consider it based on each case, a lot of people whose parents are in Canada and they did previous medicals inside Canada, they have been asked for re-medicals and some people got extension (my parents got extension too).
The policy i think will most likely apply to young people already in Canada i.e. work permit holders.