"Keep in mind that most sensible interviewers will be working on the presumption that you know the organ grinder questions and answers .. they were addressed in the various exams you have done through your early career ..."
I would agree that it would be safe and sensible for inreviewers to do that in an ideal world. But the world of ATPL training is becoming increasingly unideal (is that a real word?).
Far too many students are passing their JAR exams simply by memorising the answers to the questions in various databases. A brief examination of the Wanabees forum will illustrate this attitude all too clearly.
Because of this, many of them know absolutely nothing about the basics of subjects such as aerodynamics or aircraft performance.
If the interviewing process is effective, then such people will be weeded out.
But it is also quite clear from some of the posts that appear regularly in this forum, that a good many practicing airline pilots know very little about the basics.