Two points:

First, when everybody flies with different people all the time, standardization establishes normal expectations and reduces the potential for confusion. The particular way of doing it is not as important as is doing it the same way all the time. Habits and muscle memory are usually more efficient than having to stop and look and think before acting.

Second, have you considered what works and what doesn't in an Emergency Power situation? It's possible that the standard way or preferred way is actually the preferred way or even the only way if functionality is lost during an abnormal event.






.