Yes, that is the new arrangement IRCC has started. If your parents are already in Canada and you got your PR approved then you need not to go to border for flagpole. IRCC will either email you or will call you confirm your PR and then you will get your PR card directly. Your parents can go and apply for SIN and Health Card etc after IRCC confirms that PR is processed and PR card will be mailed to you.
@jaindba : is this new arrangement only for people who had already received appointment for inland interview or its for any application that is approved for parents in Canada? I mean does the apply even to applications that are approved after lockdown in April?