This makes some sense, but I think you still could have used an actual mechanical lock on the door. So open and close still be buttons, but once the electric do

This makes some sense, but I think you still could have used an actual mechanical lock on the door. So open and close still be buttons, but once the electric door closed, you engaged the lock (some electronics required there obviously, to tell the state to the system, so it does not try to open with the lock engaged).