I feel like there is still a fundamental misunderstanding... 4 year degrees are not intended to be vocational training. I'm all for increased vocational training options in our society. I just think saying the new certificates will disrupt 4 year degrees is analogous to saying that electric motorcycles will disrupt the 4-door pickup truck market. Sure, they are both vehicles that can take you somewhere, but they do not serve the same use case.
4 year degrees may have not originally been intended to be vocational training but for a large number of people and fields that is exactly what they have become in practice.
