Do folks like Zinger seriously believe that these kids are actually getting a good education, and the problem is just that the tests aren’t measuring the right things?
Folks like Zinger believe whatever the narrative prescribed by the institution in which they're very comfortably ensconced require them to believe. In this case we're dealing with someone that directs the education of teachers and awards UC Irvine credits, which automatically deliver higher teacher compensation as per their union contracts. You won't be surprised to learn that these courses are rather easy and short; typically just sitting through a few lectures.
It's a racket, and you're listening to a racketeer.
Then the universities can take the brunt of the responsibility for figuring out which of those bodies are actually doing their job or not, in addition to the test scores they pump out. Which means, yes, more administrators.
If the solution were more administrators the US would lead the world in test scores, setting new records annually.
https://www.statista.com/chart/11058/bachelor-tuition-fees-i...
Of course not. They're just never going to admit they're doing a bad job, and need a messenger to shoot.