That list is correct, but it's only half of the problem. The other other half of the problem is supply.
In fields like mathematics, physics, computer science, grad students have excellent non-academic options. There is an oversupply of PhD students with respect to the number of available positions, but the excess PhD students have fantastic career avenues.
In fields like the humanities, and, to a lesser extent, the molecular biology/ecology, there is a huge excess of PhD students, and there is a very limited number of career options outside of research (for bio, there is pharma, for everything else, eh). This is compounded by the fact that for professors, postdocs are an absolute steal (http://www.sciencemag.org/careers/2017/01/price-doing-postdo...). Professors get to pay 50-55k (and that's on the high very high end) a year for a PhD trained researcher who will often work themselves to the bone in the hope of getting the publications that will allow them to become a professor. Thus - the very people who have the power to change the system instead greatly benefit from the status quo.
The real reform that has to take place is that PhD programs need to become way more selective. Not every PhD should have a guaranteed spot as a professor (that would be insane) but when less than 8% of postdocs become professors, the system is in crisis.