^I agree. In my opinion, using the same final for many years opens up the possibility of cheating.
As a science and engineering student the “test bank” concept has always puzzled me. All it takes is to change some numbers in the question and you pretty much have a new test. Maybe it’s different in the other disciplines. I mean, how many different ways can you ask “Why did Gandhi go to the ocean?”
Of course there would be some value in what KINDS of things were going to be asked, but most, if not all professors made their own past tests available for copying in the library, so there would be marginal value in banking them.
Sometimes, departments put old tests right on their web sites:
https://math.berkeley.edu/courses/archives/exams
Or make them available to public test banks run by student organizations with full knowledge of the faculty:
https://tbp.berkeley.edu/courses/
https://hkn.eecs.berkeley.edu/exams/