Judgment is only one item required for satisfactory performance. Here's some others:
§ 61.43 Practical tests: General procedures.
(a) Completion of the practical test for a certificate or rating consists of—
(1) Performing the tasks specified in the areas of operation for the airman certificate or rating sought within the approved practical test standards;
(2) Demonstrating
mastery of the aircraft by performing each task successfully;
From the current PTS too:
Satisfactory Performance
Satisfactory performance to meet the requirements for certification is
based on the applicant’s ability to safely:
1. perform the Tasks specified in the Areas of Operation for
the certificate or rating sought within the approved
standards;
2. demonstrate
mastery of the aircraft by performing each
Task successfully;
3. demonstrate satisfactory proficiency and competency within
the approved standards;
4. demonstrate sound judgment and exercises aeronautical
decision-making/risk management; and
5. demonstrate single-pilot competence if the aircraft is type
certificated for single-pilot operations.
See:
http://www.merriam-webster.com/dictionary/mastery
The airplane is the subject the pilot needs to be the master of. Let's say the airplane was so well designed, it can safely handle anything if operated within its limits. Should we certify pilots who render it unsafe?