Fortunately, you don't have to. Unfortunately for the OP, not having met RO (for whatever reason) and been lucky enough to get a PRTD on H&C grounds, they are making a life choice to come back to Canada. the requirements to sponsor family are clearly defined, so if you don't like the requirements, don't come back! It's not indefinite. It's until you meet RO. Canada isn't responsible for your life choices, so don't try to make it sound like they are. Or call it cruel....that's just dumb!