The theory of the day was that the better you were as a pilot the more spare capacity you had available to operate the aircraft. These days those aircraft are gone and we have aircraft that are relatively easy to fly but equipped with complex mission systems. So it could be said that the converse is true, we now need someone who is an ace at the mission systems but no longer requires the same level of basic flying skills.
In the days when aircraft were difficult to fly the man who taught flying was one of the high priests and to become one there were trials and tests and initiation ceremonies (CFS). When aircraft became easier to fly the weapons became more complicated and a new set of cult leaders emerged with their own initiation rites (QWIs). Now we have 'Mission Specialists.' Each of these tribes require different attributes and different training environments. It can be argued (and is by some, but not on here) that, in the future, to be able to fully exploit the aerial dimension of warfare it may not be necessary to be a pilot at all and that being physically connected with the environment is not essential. Thus future generations of training tools may not fly at all or not be manned.