Ok good to know. Then what would be the purpose of the PR card renewal? I thought the PR card renewal will give them the chance to verify the RO as they aren't aware of our exits. If they have our entry and exits, they can calculate the RO themselves. I don't understand why we need to renew the PR card then.
PR card is a travel document. It shows proof of your PR status so you’re able to enter Canada by air. PR card and residency requirements are separate things. For the first 5 years it gives you an idea of whether you meet your RO. After the first 5 years you must meet the 730 days in the past 5 years on any day. For example you can not meet your RO but still fly to Canada using your PR card.