s/learn/be indoctrinated/
Yeah, this comment demonstrates my own perspective on it quite well, in that it's likely just another bald political attack by the current administration on education, wherein a bureaucrat will get to decide what does and does not constitute a worthwhile degree, and is allowed to become the gatekeeper of what universities may teach by selective topic by topic defunding.
Will they decide to ignore the salaries of students "not working in their field"? That could be used as an instant bludgeon against anything centered on history, philosophy, or other educational paths that do not generally have high paying careers associated with them, even if those graduating from them do generally earn more on average than those with only a high school diploma.
Twenty years ago something like half of those in tech didn't have a college degree of any kind. Plenty of businesses are run by folks that don't have college degrees. Crafting statistics through careful manipulation of who is counted for making the comparisons could be used to exclude almost any set of courses that isn't STEM, law or medicine.