This article seems extremely biased.
Although making the premise of the article about helping students, this change in rules allows universities to essentially hold students captive as their visa is entirely held at the mercy of the university.
While studying in Australia, many students work, have their families with them and try to live normal lives. They can have jobs that they depend on and kids that depend on them. By tying their visa directly to a specific university, it gives the university the power to charge what they feel like and hold over their visa as collateral.
I had a quick look to see the background of 'the pie', and it is clearly an industry-funded propaganda machine who does nothing but churn out pro-industry articles.