Thanks you for the reply Geno.uss, now I understand.OWP is submitted for the principle applicant to gain status in Canada and to work while waiting for PR application as the PR application doesn't grant status, to keep your status legal in Canada you either have to extend visitor visa or submit OWP or if you are out of status you submit OWP to regain status after approval in principle and to work while waiting for the end of the process
OWP isn't submitted as proof for PR application
OWP is a separate process and doesn't have any effect on PR application