CJ Romeo - one of the biggest problems pilots have is that engineers design the aircraft and its systems to solve the engineering problems not to make pilots' jobs easier or safer.
In an engineer's brain, having to switch pumps on and off is a straightforward task that anyone can do - right up to the point where that person is flying the aircraft, prioritising tasks and making weather decisions whilst operating in a cockpit with lots of other brilliantly designed systems, in the dark and over relatively inhospitable terrain.