She’s been shilling for for-profit “schools” during her entire tenure and her family makes a lot of money off the student loan bubble. For her and those who think like her, a high-profile announcement like this by an established university sets what they consider to be a bad example that goes against their “free” market fundamentalism.
I recall reading about some Libertarian dolt who was complaining about Europeans having free college tuition as if they were putting taco trucks on every corner. The horror.