You can never have a thorough protocol that always works.
Doctors need to be trained in the limits of protocol.
This is why the humanities are important. Doctors should not just be unthinking executors of protocols. Trained human intuition, expertise, experience still matters. Knowledge of the human factors still matters.
Trouble is, too many doctors have internalized the ideal of being efficient robots instead.
There's no "just" about it. (It's like saying "Facebook is just a CRUD app, right?" - which from one point of view might be literally true, but's hardly relevant to any of the problems Meta has to solve.) Much like tech, humanities are a path of life-long learning, for which a college course of study can be (though isn't strictly necessary as) a helpful starting point, but is hardly adequate.
Efficient robots, though: yes. Many who work in tech have also internalized that mind-set.