By describing what is in reality basic machines as somehow " complex " it serves several purposes...it gives bureaucrats something to do in their cubicles that sounds real professional. ( to them )
It also gives flying schools another way to make money...gone are the days when you could just take a check out from someone who was proficient on the airplane...
.....now we have a sort of Voo Doo Black Magic Doctor mentality whereby we must go to the Dr. who will get the chicken entrails, bones and ashes and using his/her magic stick poke through the ashes and find the magic answers.
Ahhhh how I miss the days when life was so much less " Complex"