I understand you are a former PWA student and obviously don't like the place, but that is no reason to poison others.
. I don't dislike PWA I just know that a cert IV without Part 147 is plain crazy, sure a cert IV is good for a trade certificate but not licencing. Have seen friends burnt repeatably by this situation.
No one asks to see my cert IV when applying for a job. Just my licence and more recently my currency.
So Propbits be very careful about what you are signing at the start of an apprenticeship. I agree a Cert II may help you get that apprenticeship and would never deter anyone from training.