PR card or not is not the issue - the issue is that you are not physically in nor resident in Canada.I am in India (outside Canada due to my mother's genuine illness backed by medical records hence can't apply for a PR card). ...
I guess my question is COPR is not enough for sponsoring my WIfe? Any advise is appreciated
Do NOT apply to sponsor until you are back physically in Canada to remain (departing only for short trips). Are you compliant with the resdiency obligation?
And dismiss your consultant - the COPR would be enough, but your consultant has failed to understand the most important part.