HWD
the "beyond there be dragons" approach maybe risk averse, but I guess it is also another manifestation of ignorance.
It is also (a) the law in this instance and (b) the way that the PPL syllabus is taught.
I interpret Ghengis' comments as meaning that basic learning is okay, but advanced learning, motivated by a desire to understand more systemically/holistically is better.
Basic learning is not the same as ignorance, in this instance.