Its not necessary that the officer mentions everything in notes, they usually look at the whole picture and make a decision. They inform you for the greater decision sometimes. I would say get a Masters and do not apply for your dependents. The officer needs a reason for your proposed study and your willingness to come back after you complete your studies. If you are not sure about convincing him the third time, try express entry to north provinces. I am sure you get some score below the cut off.
Thank you for your feedback, much appreciated!