[onewhippedpuppy]

There's a constant battle in aerospace between pilot control and automation. The pilot camp wants total control so they can conduct fault isolation, shut down individual systems, and because they all think they are better than computers. Designers and engineers want automation because it removes the human link from the system, allows them to optimize operations, and because they're geeks and like designing cool stuff. Typically the end result is some variety of compromise between the two camps, often times you end up with an automated system that can be disabled and a manual backup for redundancy.