We may be talking past each other. > "There needs to be better separation of business logic from models so that programmers don't need to 'dig' into business

We may be talking past each other. > "There needs to be better separation of business logic from models so that programmers don't need to 'dig' into business processes and exceptions, and workers don't need to deal with part of their responsibility being shoved into a black box that they're not sure they totally trust or can adapt easily should a need arise." I agree that this is unsatisfying, but I don't see programming tools fixing this, and especially not "separation"; however, I don't know what you mean by separation. I think UX* is the way to approach this, so that developers account for the actual data and decisions in a workflow. I think you convince the business with better observability. * UX is not UI.