Hi
I agree with your statement, but my reply to the post was from immigration regulation perspective not from practical perspective. As per the document I pointed, it allows you to claim yourself as "Heavy-Duty Mechanic" with one year of experience and apply for immigration, no matter how terrible mechanic are you.
Regarding apprenticeship, once you have done 3-5 year Mechanical Engineering apprenticeship. It allows you to select from a bunch of professions related to mechanical engineering depending on the courses you have taken. For example, if you have done Computer Science degree it allows to work as a System Administrator, Database Administrator, Software Developer, Web Developer, System Analyst etc.
Immigration has the same perspective, you are going to claim to be HD Mechanic, CIO NS will approve, you send your reference letters which show you haven't apprenticed as an HD Mechanic, then processing office refuses. CIC/CHC is not that stupid.
PMM