I’m not the only “lucky “ - as you mentioned.It technically is at risk if you used your home country passport so nobody should use it. There seems to be a preference to pursue people mainly because they renewed their home country passport or entered their home country but the rules indicate that protected people should travel using a RTD not their home country passport. People get lucky and don’t get caught or pursued for reavailment but it is not worth the risk to use your home country passport.
In 10applicants of citizenship ( to IRCC office, that I met) all of them got approved and became Canadians, despite of the fact that used their home passports and being protected & PR persons.
Please don’t give wrong advice if you never experienced that situation