Click Air: Clicker Trained Flight Instruction, Part 1

My flight instructor was younger than I was, a nice lad I'm sure, but he couldn't seem to find the Initial Approach Fix (a point in space we aim our aircraft at on an instrument approach) for an arc-shaped entry to the final approach out over the high desert in Southern California. He knew that he ought to know and was appropriately embarrassed. We circled and found our way eventually; but it was the proverbial "straw" that made me stop and evaluate my flight, my flight training and flight training in general. Why do instrument-rated pilots continue to make CFIT (controlled flight into terrain)? Could bad training be the root of "pilot error," "loss of control" from "spatial disorientation," and chronic deterioration of "proficiency" over time? What could I do to insure that I wasn't trained poorly?