Maybe to emphasize that machines are there to make the human task easy but not let them get lazy and develop a hard dependency on the machine!
As in - I can't do this without using some X machine, is a clear sign that we developed a hard dependency on the machine and we fail to learn/understand how to do the task without using the machine.
Happening a lot, the boundary is fading slowly. The human dependency on machines is constantly increasing, intelligent/ AI machines take this to next level e.g. Self-driving cars.