Its an implicit promise, and we can already see the pendulum swinging back in the form of lower enrollment as more people catch on.

> Its an implicit promise

It's an inferred promise, not an implicit promise. Lots of schools do try to make it an explicit, qualified promise (e.g. "80% of grads work in their field!"), and even more are shifting towards becoming what are effectively vocational schools, but this was never the intended purpose of a liberal arts education.