In addition, in a ‘traditional' aircraft, where the flight controls are fully interlinked, the instructor might also be able to monitor the direction and magnitude of any, albeit relatively small, control inputs made by the student by sensing their movements in a tactile manner
The facts are:
In a "traditional" aircraft the relatively small control inputs will be sensed by the other pilot and he will react if necessary or will not react even if it's necessary and we will call this a human error
In the "non traditional" aircraft small control inputs will never be sensed by the other pilot and so he will not react even if it's necessary and we can not call this a human error