There's no such thing as "reliably get you an interesting job."
Every job has boring and interesting roles, and whether you luck into an interesting one is heavily dependent on things like whether you are the kind of person who is interested in many things or not.
I believe you are saying that one role of a university education is to provide job preparation, and that universities should be clear about which programs lead to jobs in that field and which don't. (Sub-text is that there is an implicit quid pro quo, where the university is taking your money on the understanding that you will receive training in something that will enable you to get an interesting job.)
But universities don't have that information. Only the job market could know which jobs are likely to exist for recent university graduates in the future, when they graduate, and recent events have been pretty clear that the job market sucks at having that information.
And universities aren't designed as stepping stones to a good career. They have hundreds of years of historical purpose as a reservoir of expertise where the development, collection, and dissemination of knowledge and understanding takes place. Job preparation is a side effect, not a foundational purpose. The foundational purpose is answering questions.