Just to make sure, did CIC asked you some document or finger print or anything you might think of, before sending passport request. That might be a delaying thing? In my case CIC asked for finger prints before asking for passports. I replied to them I never been to Canada and I am in USA, why I need RCMP finger printing and police report. After that email, I got passport request.
It is 7 weeks now I haven't got my passports back, I am guessing that may be the reason of delay in sending passports back. Any one whose passports are delayed going through similar situation?