Just wanted to share my thoughts on this:
I would consider a case positively if they are not bringing their unemployed spouse and children as it would put more stress on canadian benefit system if they accompany the applicant and remain unemployed beyond a point and start claiming benefits.
Second, resettlement to a different country is a very risky decision in life. So, once should consider this with some mitigation plan like relocating only himself instead of entire family. I have seen immigration systems welcome this as they totally empathize with the immigrants cautious approach.
By not being able to economically stabilize, i believe CIC is referring to current income levels of the applicant. Even after qualifying in all areas, one might be cautious if their income levels are very low when compared to other applicants in the same category.
I think minimum settlement funds and minimum ielts should not be a problem, as these are stipulated by CIC themselves and they would not contradict their own guide lines.
There are my views. Please let me know if my understanding is right.