I was an international student, and I still think the system is fair. A person with two or more certificates and one year of Canadian experience gets very close to (470+) an outland applicant with a master's degree, great IELTS score, and more than 3 years of foreign work experience. These foreign applicants had to spend 3 to 4 years for their bachelor's degree, 2 years for their master's degree, and then work for 3 years on top of it to get to this point while an international student with 2 or more certificates can achieve this easily within 5 years after graduating high school. So, it's 8/9 years versus 5 years. An international student with a bachelor's degree + CLB 10 + one year of Canadian experience gets 474 while an outland applicant with a bachelor's degree + CLB 10 + 3 years of foreign work experience gets 441 points. With the current trend, the hypothetical international student would get an ITA while candidates with 441 have little to no hope.
It's a known fact that most international students don't become PRs. I know many former international students who still struggle to find skilled employment due to a lack of soft skills and language skills, and failure to assimilate. Also, not all international students are created equally. Some excel in their field and therefore as a result of that, they should become permanent residents. The Express Entry system gives them a solid platform to do this. If you couldn't find meaningful employment or score a decent IELTS band after living in an English-speaking country for 2+ years, you really don't deserve permanent residency.
International students in the US with advanced degrees have to work for almost a decade to get their permanent residence (green card). Compared to that, the situation is much better for their counterparts in Canada.
I hate to be the devil's advocate here, but this country does not belong to us (current and former international students) just because we paid higher tuition fees for our education and lived here for the duration of it. In my personal opinion, a former international student with one-year Canadian experience and a decent IELTS score should be able to get an ITA with current trends. If they can't, too bad for them.