Actually was mistaken assumption on my part that you no longer had valid PR card.
If one doesn't have a valid PR card, won't be allowed to board flight - without first applying for PRTD, a (reportedly) more strict and formal process that seemingly results in revoked PR status more frequently. (Although if not, positive decision could mean easier to settle in Canada and possibly - honestly not certain - sponsor family).
For those who can travel through USA, can enter by land - and border officers seem to start process of revocation less frequently - seemingly letting PRs who are out of compliance "self-select" by remaining in country and getting in compliance or not.
(PRs not in compliance or not must be let into Canada at border - in effect one of main restrictions is ability to board a plane to Canada)
